<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      background: #ffffff;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      width: 100%;
    }

    /* Unit toggle tabs */
    .tabs {
      display: flex;
      justify-content: center;
      gap: 8px;
    }
    .tab-btn {
      padding: 6px 14px;
      font-size: 13px;
      font-weight: 600;
      border: 1px solid #cbd5e1;
      background: #f8fafc;
      border-radius: 20px;
      cursor: pointer;
      color: #475569;
      transition: all 0.2s ease;
    }
    .tab-btn.active {
      background: #0284c7;
      color: #ffffff;
      border-color: #0284c7;
      box-shadow: 0 2px 4px rgba(2, 132, 199, 0.2);
    }

    /* 3 Visual Scale Boxes */
    .scale-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
    }
    .scale-card {
      border-radius: 10px;
      padding: 10px 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      border: 1px solid #e2e8f0;
      transition: transform 0.2s ease;
    }
    .card-milli { background: #e0f2fe; border-color: #bae6fd; }
    .card-base  { background: #f8fafc; border-color: #e2e8f0; }
    .card-kilo  { background: #dcfce7; border-color: #bbf7d0; }

    .prefix-badge {
      font-size: 12px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 6px;
      background: rgba(255, 255, 255, 0.8);
      margin-bottom: 6px;
      letter-spacing: -0.2px;
    }
    .scale-icon {
      font-size: 26px;
      line-height: 1.1;
      margin-bottom: 4px;
    }
    .scale-label {
      font-size: 13px;
      font-weight: 700;
      color: #0f172a;
    }
    .scale-sub {
      font-size: 11px;
      color: #64748b;
      font-weight: 500;
    }

    /* Conversion Ladder */
    .ladder-section {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 10px 12px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .ladder-title {
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: #64748b;
      text-align: center;
    }

    /* Step sequence bar */
    .step-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      position: relative;
      padding: 0 4px;
    }
    .step-node {
      display: flex;
      flex-direction: column;
      align-items: center;
      z-index: 2;
    }
    .node-tag {
      font-size: 12px;
      font-weight: 700;
      padding: 4px 8px;
      border-radius: 6px;
      border: 1px solid transparent;
      box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    }
    .tag-milli { background: #e0f2fe; border-color: #bae6fd; color: #0369a1; }
    .tag-centi { background: #fef3c7; border-color: #fde68a; color: #b45309; }
    .tag-base  { background: #ffffff; border-color: #cbd5e1; color: #334155; }
    .tag-kilo  { background: #dcfce7; border-color: #bbf7d0; color: #15803d; }

    .arrow-bridge {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      position: relative;
      padding: 0 2px;
    }
    .arrow-text {
      font-size: 10px;
      font-weight: 700;
      color: #64748b;
      margin-bottom: 2px;
    }
    .arrow-line {
      width: 100%;
      height: 2px;
      background: #cbd5e1;
      position: relative;
    }
    .arrow-line::after {
      content: "▶";
      font-size: 8px;
      position: absolute;
      right: -3px;
      top: -5px;
      color: #94a3b8;
    }

    /* Equivalence formula pills */
    .eq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 6px;
    }
    .eq-pill {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      padding: 6px 8px;
      font-size: 12px;
      font-weight: 600;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
    }
    .eq-highlight {
      color: #0284c7;
      font-weight: 700;
    }
  </style>
</head>
<body>

  
  <div class="tabs">
    <button class="tab-btn active" id="btnLength" onclick="setMode('length')">📏 Length (m)</button>
    <button class="tab-btn" id="btnMass" onclick="setMode('mass')">⚖️ Mass (g)</button>
  </div>

  
  <div class="scale-row">
    
    <div class="scale-card card-milli">
      <span class="prefix-badge">milli- (m)</span>
      <div class="scale-icon" id="iconMilli">🌱</div>
      <div class="scale-label" id="labelMilli">1 mm</div>
      <div class="scale-sub" id="subMilli">Seed thickness</div>
    </div>

    
    <div class="scale-card card-base">
      <span class="prefix-badge">Base Unit</span>
      <div class="scale-icon" id="iconBase">📏</div>
      <div class="scale-label" id="labelBase">1 m</div>
      <div class="scale-sub" id="subBase">Meter stick</div>
    </div>

    
    <div class="scale-card card-kilo">
      <span class="prefix-badge">kilo- (k)</span>
      <div class="scale-icon" id="iconKilo">🏃</div>
      <div class="scale-label" id="labelKilo">1 km</div>
      <div class="scale-sub" id="subKilo">Running track</div>
    </div>
  </div>

  
  <div class="ladder-section">
    <div class="ladder-title">Prefix Scale & Multipliers</div>
    
    <div class="step-bar">
      <div class="step-node">
        <div class="node-tag tag-milli" id="nodeMilli">milli (m)</div>
      </div>
      
      <div class="arrow-bridge">
        <div class="arrow-text">×10</div>
        <div class="arrow-line"></div>
      </div>

      <div class="step-node" id="centiNodeWrapper">
        <div class="node-tag tag-centi" id="nodeCenti">centi (c)</div>
      </div>

      <div class="arrow-bridge">
        <div class="arrow-text">×100</div>
        <div class="arrow-line"></div>
      </div>

      <div class="step-node">
        <div class="node-tag tag-base" id="nodeBase">Base Unit</div>
      </div>

      <div class="arrow-bridge">
        <div class="arrow-text">×1000</div>
        <div class="arrow-line"></div>
      </div>

      <div class="step-node">
        <div class="node-tag tag-kilo" id="nodeKilo">kilo (k)</div>
      </div>
    </div>

    <div class="eq-grid" id="eqContainer">
      <div class="eq-pill"><span>1000 mm</span> = <span class="eq-highlight">1 m</span></div>
      <div class="eq-pill"><span>100 cm</span> = <span class="eq-highlight">1 m</span></div>
      <div class="eq-pill" style="grid-column: span 2;"><span>1000 m</span> = <span class="eq-highlight">1 km</span></div>
    </div>
  </div>

  <script>
    function setMode(mode) {
      const isLength = mode === 'length';
      document.getElementById('btnLength').classList.toggle('active', isLength);
      document.getElementById('btnMass').classList.toggle('active', !isLength);

      if (isLength) {
        document.getElementById('iconMilli').textContent = '🌱';
        document.getElementById('labelMilli').textContent = '1 mm';
        document.getElementById('subMilli').textContent = 'Seed thickness';

        document.getElementById('iconBase').textContent = '📏';
        document.getElementById('labelBase').textContent = '1 m';
        document.getElementById('subBase').textContent = 'Meter stick';

        document.getElementById('iconKilo').textContent = '🏃';
        document.getElementById('labelKilo').textContent = '1 km';
        document.getElementById('subKilo').textContent = 'Running track';

        document.getElementById('nodeMilli').textContent = 'milli (m)';
        document.getElementById('nodeCenti').textContent = 'centi (c)';
        document.getElementById('nodeBase').textContent = 'Meter (m)';
        document.getElementById('nodeKilo').textContent = 'kilo (k)';

        document.getElementById('eqContainer').innerHTML = `
          <div class="eq-pill"><span>1000 mm</span> = <span class="eq-highlight">1 m</span></div>
          <div class="eq-pill"><span>100 cm</span> = <span class="eq-highlight">1 m</span></div>
          <div class="eq-pill" style="grid-column: span 2;"><span>1000 m</span> = <span class="eq-highlight">1 km</span></div>
        `;
      } else {
        document.getElementById('iconMilli').textContent = '💊';
        document.getElementById('labelMilli').textContent = '1 mg';
        document.getElementById('subMilli').textContent = 'Pinch of salt';

        document.getElementById('iconBase').textContent = '📎';
        document.getElementById('labelBase').textContent = '1 g';
        document.getElementById('subBase').textContent = 'Paperclip';

        document.getElementById('iconKilo').textContent = '🏋️';
        document.getElementById('labelKilo').textContent = '1 kg';
        document.getElementById('subKilo').textContent = '1 Liter water';

        document.getElementById('nodeMilli').textContent = 'milli (m)';
        document.getElementById('nodeCenti').textContent = 'centi (c)';
        document.getElementById('nodeBase').textContent = 'Gram (g)';
        document.getElementById('nodeKilo').textContent = 'kilo (k)';

        document.getElementById('eqContainer').innerHTML = `
          <div class="eq-pill"><span>1000 mg</span> = <span class="eq-highlight">1 g</span></div>
          <div class="eq-pill"><span>100 cg</span> = <span class="eq-highlight">1 g</span></div>
          <div class="eq-pill" style="grid-column: span 2;"><span>1000 g</span> = <span class="eq-highlight">1 kg</span></div>
        `;
      }
    }
  </script>
</body>
</html>

Communicating Scientific Findings Using Technical Terminology

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      color: #1e2945;
      background: transparent;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100%;
      user-select: none;
    }
    .diagram-wrapper {
      width: 100%;
      max-width: 580px;
      padding: 8px;
    }
    svg {
      width: 100%;
      height: auto;
      display: block;
      overflow: visible;
    }
    .eye-btn {
      cursor: pointer;
      transition: opacity 0.2s ease;
    }
    .eye-btn:hover {
      opacity: 0.85;
    }
    .guide-line {
      transition: stroke-width 0.2s ease, opacity 0.2s ease;
    }
  </style>
</head>
<body>

<div class="diagram-wrapper">
  <svg viewBox="0 0 540 380" aria-label="Reading a graduated cylinder at the meniscus">
    <defs>
      
      <linearGradient id="liquidGrad" x1="0%" y1="0%" x2="100%" y2="0%">
        <stop offset="0%" stop-color="#0284c7" stop-opacity="0.35" />
        <stop offset="20%" stop-color="#38bdf8" stop-opacity="0.65" />
        <stop offset="80%" stop-color="#38bdf8" stop-opacity="0.65" />
        <stop offset="100%" stop-color="#0284c7" stop-opacity="0.35" />
      </linearGradient>
      
      <linearGradient id="glassGrad" x1="0%" y1="0%" x2="100%" y2="0%">
        <stop offset="0%" stop-color="#ffffff" stop-opacity="0.6" />
        <stop offset="15%" stop-color="#ffffff" stop-opacity="0.1" />
        <stop offset="85%" stop-color="#ffffff" stop-opacity="0.1" />
        <stop offset="100%" stop-color="#ffffff" stop-opacity="0.5" />
      </linearGradient>
      <marker id="arrow" viewBox="0 0 10 10" refX="6" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
        <path d="M 0 1 L 10 5 L 0 9 z" fill="#1e2945" />
      </marker>
    </defs>

    
    <rect x="70" y="25" width="110" height="330" rx="6" fill="#f8fafc" stroke="#94a3b8" stroke-width="3" />
    <rect x="55" y="348" width="140" height="14" rx="4" fill="#cbd5e1" stroke="#94a3b8" stroke-width="2" />

    
    <path d="M 72 152 Q 125 180 178 152 L 178 350 L 72 350 Z" fill="url(#liquidGrad)" />
    
    
    <path d="M 72 152 Q 125 180 178 152" fill="none" stroke="#0284c7" stroke-width="3.5" />
    <ellipse cx="125" cy="152" rx="53" ry="8" fill="#bae6fd" fill-opacity="0.3" stroke="#38bdf8" stroke-width="1.5" />

    
    <rect x="72" y="27" width="106" height="323" fill="url(#glassGrad)" pointer-events="none" />

    
    
    <line x1="72" y1="60" x2="96" y2="60" stroke="#1e2945" stroke-width="2" />
    <text x="64" y="64" font-size="13" font-weight="700" fill="#1e2945" text-anchor="end">27</text>
    
    <line x1="72" y1="100" x2="96" y2="100" stroke="#1e2945" stroke-width="2" />
    <text x="64" y="104" font-size="13" font-weight="700" fill="#1e2945" text-anchor="end">26</text>
    
    <line x1="72" y1="140" x2="96" y2="140" stroke="#1e2945" stroke-width="2" />
    <text x="64" y="144" font-size="13" font-weight="700" fill="#1e2945" text-anchor="end">25</text>
    
    <line x1="72" y1="180" x2="102" y2="180" stroke="#1e2945" stroke-width="2.5" />
    <text x="64" y="184" font-size="13" font-weight="700" fill="#1e2945" text-anchor="end">24</text>
    
    <line x1="72" y1="220" x2="96" y2="220" stroke="#1e2945" stroke-width="2" />
    <text x="64" y="224" font-size="13" font-weight="700" fill="#1e2945" text-anchor="end">23</text>
    
    <line x1="72" y1="260" x2="96" y2="260" stroke="#1e2945" stroke-width="2" />
    <text x="64" y="264" font-size="13" font-weight="700" fill="#1e2945" text-anchor="end">22</text>
    
    <line x1="72" y1="300" x2="96" y2="300" stroke="#1e2945" stroke-width="2" />
    <text x="64" y="304" font-size="13" font-weight="700" fill="#1e2945" text-anchor="end">21</text>

    
    <line x1="72" y1="80" x2="86" y2="80" stroke="#64748b" stroke-width="1.5" />
    <line x1="72" y1="120" x2="86" y2="120" stroke="#64748b" stroke-width="1.5" />
    <line x1="72" y1="160" x2="86" y2="160" stroke="#64748b" stroke-width="1.5" />
    <line x1="72" y1="200" x2="86" y2="200" stroke="#64748b" stroke-width="1.5" />
    <line x1="72" y1="240" x2="86" y2="240" stroke="#64748b" stroke-width="1.5" />
    <line x1="72" y1="280" x2="86" y2="280" stroke="#64748b" stroke-width="1.5" />
    <line x1="72" y1="320" x2="86" y2="320" stroke="#64748b" stroke-width="1.5" />

    
    
    <line id="line-high" class="guide-line" x1="420" y1="80" x2="125" y2="180" stroke="#ef4444" stroke-width="2" stroke-dasharray="5,4" opacity="0.85" />
    
    
    <line id="line-correct" class="guide-line" x1="420" y1="180" x2="125" y2="180" stroke="#0284c7" stroke-width="2.5" stroke-dasharray="6,4" />

    
    <line id="line-low" class="guide-line" x1="420" y1="280" x2="125" y2="180" stroke="#ef4444" stroke-width="2" stroke-dasharray="5,4" opacity="0.85" />

    
    <circle cx="125" cy="180" r="4" fill="#0284c7" />

    
    <g transform="translate(10, 25)">
      <rect x="0" y="0" width="135" height="42" rx="6" fill="#ffffff" stroke="#1e2945" stroke-width="1.5" filter="drop-shadow(0 2px 4px rgba(0,0,0,0.06))" />
      <text x="67" y="17" font-size="12" font-weight="700" fill="#1e2945" text-anchor="middle">Meniscus</text>
      <text x="67" y="32" font-size="11" font-weight="600" fill="#0284c7" text-anchor="middle">Read at bottom</text>
      
      <path d="M 85 42 Q 100 110 120 172" fill="none" stroke="#1e2945" stroke-width="1.75" marker-end="url(#arrow)" />
    </g>

    
    
    
    <g class="eye-btn" id="btn-high" transform="translate(425, 68)">
      <rect x="0" y="0" width="110" height="28" rx="5" fill="#fef2f2" stroke="#fca5a5" stroke-width="1" />
      <text x="8" y="18" font-size="14">👁️</text>
      <text x="30" y="18" font-size="12" font-weight="700" fill="#dc2626">✗ Too high</text>
    </g>

    
    <g class="eye-btn" id="btn-correct" transform="translate(425, 162)">
      <rect x="0" y="0" width="110" height="36" rx="6" fill="#f0fdf4" stroke="#86efac" stroke-width="1.5" />
      <text x="8" y="22" font-size="15">👁️</text>
      <text x="28" y="17" font-size="12" font-weight="700" fill="#16a34a">✓ Eye level</text>
      <text x="28" y="30" font-size="11" font-weight="700" fill="#0284c7">24.0 mL</text>
    </g>

    
    <g class="eye-btn" id="btn-low" transform="translate(425, 268)">
      <rect x="0" y="0" width="110" height="28" rx="5" fill="#fef2f2" stroke="#fca5a5" stroke-width="1" />
      <text x="8" y="18" font-size="14">👁️</text>
      <text x="30" y="18" font-size="12" font-weight="700" fill="#dc2626">✗ Too low</text>
    </g>
  </svg>
</div>

<script>
  // Simple interactive focus on tap/click
  const lines = {
    high: document.getElementById('line-high'),
    correct: document.getElementById('line-correct'),
    low: document.getElementById('line-low')
  };

  function selectAngle(type) {
    Object.keys(lines).forEach(k => {
      if (k === type) {
        lines[k].style.opacity = '1';
        lines[k].style.strokeWidth = k === 'correct' ? '3.5' : '3';
      } else {
        lines[k].style.opacity = '0.3';
        lines[k].style.strokeWidth = '1.5';
      }
    });
  }

  function resetAngles() {
    lines.high.style.opacity = '0.85';
    lines.high.style.strokeWidth = '2';
    lines.correct.style.opacity = '1';
    lines.correct.style.strokeWidth = '2.5';
    lines.low.style.opacity = '0.85';
    lines.low.style.strokeWidth = '2';
  }

  ['high', 'correct', 'low'].forEach(type => {
    const btn = document.getElementById('btn-' + type);
    btn.addEventListener('pointerenter', () => selectAngle(type));
    btn.addEventListener('pointerleave', resetAngles);
    btn.addEventListener('click', () => selectAngle(type));
  });
</script>

</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }

    body {
      background: #f8fafc;
      color: #1e2945;
      padding: 10px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      user-select: none;
    }

    /* Controls Bar */
    .controls-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 6px;
    }

    .step-tabs {
      display: flex;
      gap: 4px;
      flex: 1;
    }

    .tab-btn {
      flex: 1;
      padding: 6px 4px;
      font-size: 13px;
      font-weight: 700;
      border: 1px solid #e2e8f0;
      background: #ffffff;
      color: #64748b;
      border-radius: 6px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      transition: all 0.25s ease;
    }

    .tab-btn.active {
      color: #0f172a;
      border-color: #94a3b8;
      box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    }

    .tab-btn[data-step="0"].active { background: #fef9c3; border-color: #eab308; color: #854d0e; }
    .tab-btn[data-step="1"].active { background: #ffedd5; border-color: #f97316; color: #9a3412; }
    .tab-btn[data-step="2"].active { background: #dcfce7; border-color: #22c55e; color: #166534; }
    .tab-btn[data-step="3"].active { background: #eff6ff; border-color: #3b82f6; color: #1e40af; }

    .play-btn {
      padding: 6px 10px;
      font-size: 13px;
      font-weight: 600;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 6px;
      color: #334155;
      cursor: pointer;
    }

    /* Transformation Cards Container */
    .cards-list {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .trans-card {
      display: grid;
      grid-template-columns: 84px 1fr auto 1.6fr;
      align-items: center;
      gap: 6px;
      padding: 7px 10px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      opacity: 0.55;
      transition: opacity 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
      cursor: pointer;
    }

    .trans-card.active {
      opacity: 1;
      box-shadow: 0 2px 6px rgba(0,0,0,0.06);
    }

    .trans-card.step-0.active { border-color: #eab308; background: #fffdf5; }
    .trans-card.step-1.active { border-color: #f97316; background: #fffaf5; }
    .trans-card.step-2.active { border-color: #22c55e; background: #f6fef9; }

    .badge {
      font-size: 11px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.03em;
      padding: 3px 6px;
      border-radius: 4px;
      text-align: center;
      white-space: nowrap;
    }

    .badge-yellow { background: #fef08a; color: #854d0e; }
    .badge-orange { background: #fed7aa; color: #9a3412; }
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    .draft-box {
      font-size: 13px;
      color: #64748b;
      text-decoration: line-through;
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      border-radius: 4px;
      line-height: 1.25;
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    .arrow-icon {
      font-size: 13px;
      font-weight: 900;
      color: #94a3b8;
    }

    .upgrade-box {
      font-size: 13px;
      font-weight: 600;
      color: #0f172a;
      line-height: 1.3;
      padding: 4px 6px;
      border-radius: 4px;
    }

    .step-0 .upgrade-box { background: #fef9c3; color: #713f12; }
    .step-1 .upgrade-box { background: #ffedd5; color: #7c2d12; }
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    /* Polished Summary Output */
    .summary-card {
      background: #ffffff;
      border: 1.5px solid #cbd5e1;
      border-radius: 8px;
      padding: 8px 10px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      gap: 4px;
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    .summary-card.final-highlight {
      border-color: #22c55e;
      background: #f0fdf4;
      box-shadow: 0 2px 8px rgba(34, 197, 94, 0.15);
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    .summary-header {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      color: #475569;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .check-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 16px;
      height: 16px;
      background: #22c55e;
      color: #ffffff;
      border-radius: 50%;
      font-size: 10px;
      font-weight: 900;
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    .summary-text {
      font-size: 13.5px;
      line-height: 1.45;
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      padding: 1px 4px;
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      background: #bbf7d0;
      color: #166534;
      padding: 1px 4px;
      border-radius: 3px;
      font-weight: 600;
    }

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        grid-template-columns: 1fr;
        gap: 4px;
        padding: 6px 8px;
      }
      .arrow-icon {
        display: none;
      }
      .badge {
        align-self: flex-start;
      }
      .summary-text {
        font-size: 12.5px;
      }
    }
  </style>
</head>
<body>

  
  <div class="controls-bar">
    <div class="step-tabs">
      <button class="tab-btn active" data-step="0">Step 1</button>
      <button class="tab-btn" data-step="1">Step 2</button>
      <button class="tab-btn" data-step="2">Step 3</button>
      <button class="tab-btn" data-step="3">All</button>
    </div>
    <button class="play-btn" id="playBtn">⏸ Pause</button>
  </div>

  
  <div class="cards-list">
    
    <div class="trans-card step-0 active" data-step="0">
      <span class="badge badge-yellow">Step 1</span>
      <div class="draft-box">"poured some liquid"</div>
      <span class="arrow-icon">→</span>
      <div class="upgrade-box">transferred 50.0 mL of 1.0 M hydrochloric acid using a graduated cylinder</div>
    </div>

    
    <div class="trans-card step-1" data-step="1">
      <span class="badge badge-orange">Step 2</span>
      <div class="draft-box">"put powder in"</div>
      <span class="arrow-icon">→</span>
      <div class="upgrade-box">added 2.50 g of magnesium ribbon</div>
    </div>

    
    <div class="trans-card step-2" data-step="2">
      <span class="badge badge-green">Step 3</span>
      <div class="draft-box">"got hot super quick"</div>
      <span class="arrow-icon">→</span>
      <div class="upgrade-box">observed an exothermic reaction, with temperature increasing from 21.5 °C to 48.0 °C in 30 s</div>
    </div>
  </div>

  
  <div class="summary-card" id="summaryCard">
    <div class="summary-header">
      <span class="check-icon">✓</span>
      <span>Polished Scientific Report</span>
    </div>
    <div class="summary-text" id="summaryContent">
      <span class="hl-liquid">Transferred 50.0 mL of 1.0 M HCl</span>, 
      <span class="hl-solid">added 2.50 g of Mg ribbon</span>, and 
      <span class="hl-reaction">observed an exothermic reaction (21.5 °C → 48.0 °C in 30 s)</span>.
    </div>
  </div>

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * {
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      color: #1e2945;
      background: transparent;
      padding: 12px;
      display: flex;
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      gap: 10px;
      min-height: 100%;
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    .controls {
      display: flex;
      justify-content: center;
      gap: 8px;
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    .tab-btn {
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      border-radius: 20px;
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      background: #22b7ff;
      border-color: #22b7ff;
      color: #ffffff;
      box-shadow: 0 2px 6px rgba(34, 183, 255, 0.35);
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      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      flex: 1;
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        grid-template-columns: 1fr;
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    }

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      background: #ffffff;
      border: 1.5px solid #e2e8f0;
      border-radius: 14px;
      padding: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
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    .world-panel.earth {
      border-top: 4px solid #3b82f6;
    }

    .world-panel.moon {
      border-top: 4px solid #94a3b8;
    }

    .world-header {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 15px;
      font-weight: 700;
      color: #1e2945;
    }

    .astro-visual {
      font-size: 38px;
      line-height: 1;
      filter: drop-shadow(0 4px 6px rgba(0,0,0,0.08));
    }

    /* Metric Cards */
    .metric-group {
      width: 100%;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .metric-card {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 8px 10px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: opacity 0.25s ease, background-color 0.25s ease;
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    .metric-card.dimmed {
      opacity: 0.3;
    }

    .metric-info {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .icon-box {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      font-size: 16px;
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    .metric-label {
      font-size: 12px;
      font-weight: 600;
      color: #64748b;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .metric-value {
      font-size: 16px;
      font-weight: 800;
      color: #1e2945;
    }

    /* Tag callouts */
    .badge {
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 6px;
      white-space: nowrap;
    }

    .badge-same {
      background: #dcfce7;
      color: #15803d;
      border: 1px solid #86efac;
    }

    .badge-diff {
      background: #ffedd5;
      color: #c2410c;
      border: 1px solid #fdba74;
    }

    /* Force visual arrow */
    .gravity-indicator {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      font-size: 11px;
      font-weight: 600;
      color: #64748b;
    }

    .arrow-down {
      display: inline-block;
      transition: transform 0.3s ease;
    }

    .earth .arrow-down {
      color: #ef4444;
      font-size: 14px;
    }

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      color: #f97316;
      font-size: 11px;
    }

    /* Bottom note */
    .footer-note {
      background: #f1f5f9;
      border-radius: 8px;
      padding: 8px 12px;
      font-size: 12px;
      color: #1e2945;
      text-align: center;
      font-weight: 500;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }
  </style>
</head>
<body>

  
  <div class="controls">
    <button class="tab-btn active" onclick="setMode('all')">Compare Both</button>
    <button class="tab-btn" onclick="setMode('mass')">⚖️ Mass Focus</button>
    <button class="tab-btn" onclick="setMode('weight')">🪝 Weight Focus</button>
  </div>

  
  <div class="comparison-grid">
    
    
    <div class="world-panel earth">
      <div class="world-header">🌍 Earth</div>
      <div class="astro-visual">🧑‍🚀</div>
      
      <div class="metric-group">
        
        <div class="metric-card mass-row">
          <div class="metric-info">
            <div class="icon-box">⚖️</div>
            <div>
              <div class="metric-label">Mass</div>
              <div class="metric-value">60 kg</div>
            </div>
          </div>
        </div>

        
        <div class="metric-card weight-row">
          <div class="metric-info">
            <div class="icon-box">🪝</div>
            <div>
              <div class="metric-label">Weight</div>
              <div class="metric-value">588 N</div>
            </div>
          </div>
          <div class="gravity-indicator">
            <span class="arrow-down">⬇️</span> 1g gravity
          </div>
        </div>
      </div>
    </div>

    
    <div class="world-panel moon">
      <div class="world-header">🌕 Moon</div>
      <div class="astro-visual">🧑‍🚀</div>
      
      <div class="metric-group">
        
        <div class="metric-card mass-row">
          <div class="metric-info">
            <div class="icon-box">⚖️</div>
            <div>
              <div class="metric-label">Mass</div>
              <div class="metric-value">60 kg</div>
            </div>
          </div>
          <span class="badge badge-same">Same!</span>
        </div>

        
        <div class="metric-card weight-row">
          <div class="metric-info">
            <div class="icon-box">🪝</div>
            <div>
              <div class="metric-label">Weight</div>
              <div class="metric-value">98 N</div>
            </div>
          </div>
          <span class="badge badge-diff">⅙ gravity</span>
        </div>
      </div>
    </div>

  </div>

  
  <div class="footer-note">
    <span>🔬</span> In the lab, an electronic balance measures mass in grams (g) or kilograms (kg).
  </div>

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  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <title>Language Precision & Repeatability</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background: transparent;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      color: #0f172a;
      line-height: 1.3;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      min-height: 100%;
      user-select: none;
      -webkit-user-select: none;
    }

    /* Header */
    .header {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 8px;
      padding-bottom: 6px;
      border-bottom: 1px solid #e2e8f0;
    }
    .header-title {
      font-size: 15px;
      font-weight: 700;
      color: #0f172a;
      letter-spacing: -0.01em;
    }
    .status-tags {
      display: flex;
      gap: 6px;
    }
    .tag {
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 9999px;
      letter-spacing: 0.02em;
      text-transform: uppercase;
    }
    .tag-vague {
      background: #fef2f2;
      color: #dc2626;
      border: 1px solid #fecaca;
    }
    .tag-precise {
      background: #ecfdf5;
      color: #059669;
      border: 1px solid #a7f3d0;
    }

    /* Comparison Container */
    .comparison-grid {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    /* Row Card */
    .compare-row {
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 8px;
      padding: 10px 8px;
      border-radius: 10px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      transition: background 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
      cursor: pointer;
    }
    .compare-row:hover, .compare-row.active {
      background: #ffffff;
      border-color: #cbd5e1;
      box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
    }

    /* Sides */
    .side {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px;
      border-radius: 8px;
      min-width: 0;
    }
    .side-vague {
      background: rgba(254, 242, 242, 0.6);
      border: 1px dashed #fca5a5;
    }
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      background: rgba(236, 253, 245, 0.7);
      border: 1px solid #6ee7b7;
    }

    .icon-box {
      font-size: 22px;
      display: flex;
      align-items: center;
      justify-content: center;
      min-width: 32px;
      height: 32px;
      border-radius: 6px;
      background: #ffffff;
      box-shadow: 0 1px 3px rgba(0,0,0,0.05);
      flex-shrink: 0;
    }

    .info {
      display: flex;
      flex-direction: column;
      gap: 2px;
      min-width: 0;
      overflow: hidden;
    }
    .quote {
      font-size: 13px;
      font-weight: 700;
      color: #1e293b;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
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      color: #047857;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 12.5px;
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      font-size: 11px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 3px;
      white-space: nowrap;
    }
    .side-vague .subtext {
      color: #ef4444;
    }
    .side-precise .subtext {
      color: #10b981;
    }

    /* Transform Arrow */
    .arrow-col {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 2px;
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      font-size: 9.5px;
      font-weight: 700;
      text-transform: uppercase;
      color: #475569;
      background: #e2e8f0;
      padding: 2px 5px;
      border-radius: 4px;
      letter-spacing: 0.02em;
      white-space: nowrap;
    }
    .arrow-symbol {
      font-size: 16px;
      font-weight: 900;
      color: #3b82f6;
      line-height: 1;
    }

    /* Bottom Summary Bar */
    .summary-strip {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 4px;
      background: #f1f5f9;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      padding: 8px 10px;
      font-size: 12px;
      font-weight: 700;
      color: #334155;
    }
    .summary-item {
      display: flex;
      align-items: center;
      gap: 5px;
    }
    .summary-icon {
      font-size: 13px;
      color: #2563eb;
    }
    .operator {
      color: #94a3b8;
      font-weight: 900;
      font-size: 14px;
    }
    .summary-result {
      color: #059669;
      background: #ecfdf5;
      border: 1px solid #a7f3d0;
      padding: 2px 8px;
      border-radius: 6px;
      font-weight: 800;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* Mobile Adjustments */
    @media (max-width: 480px) {
      .compare-row {
        grid-template-columns: 1fr;
        gap: 6px;
        padding: 8px;
      }
      .arrow-col {
        flex-direction: row;
        gap: 6px;
      }
      .arrow-symbol {
        transform: rotate(90deg);
      }
      .summary-strip {
        flex-direction: column;
        gap: 6px;
        align-items: stretch;
        text-align: center;
      }
      .summary-item {
        justify-content: center;
      }
      .operator {
        display: none;
      }
    }
  </style>
</head>
<body>

  
  <div class="header">
    <span class="header-title">Language Precision & Repeatability</span>
    <div class="status-tags">
      <span class="tag tag-vague">Qualitative ✗</span>
      <span class="tag tag-precise">Quantitative ✓</span>
    </div>
  </div>

  
  <div class="comparison-grid">

    
    <div class="compare-row" id="row-temp">
      <div class="side side-vague">
        <div class="icon-box">♨️</div>
        <div class="info">
          <div class="quote">"Pretty warm"</div>
          <div class="subtext">✕ Non-repeatable</div>
        </div>
      </div>

      <div class="arrow-col">
        <span class="arrow-badge">SI Unit (°C)</span>
        <span class="arrow-symbol">➔</span>
      </div>

      <div class="side side-precise">
        <div class="icon-box">🌡️</div>
        <div class="info">
          <div class="quote">65.0 °C (±0.2)</div>
          <div class="subtext">✓ Exact metric</div>
        </div>
      </div>
    </div>

    
    <div class="compare-row" id="row-mass">
      <div class="side side-vague">
        <div class="icon-box">🥄</div>
        <div class="info">
          <div class="quote">"Spoon of salt"</div>
          <div class="subtext">✕ Variable mass</div>
        </div>
      </div>

      <div class="arrow-col">
        <span class="arrow-badge">Mass & IUPAC</span>
        <span class="arrow-symbol">➔</span>
      </div>

      <div class="side side-precise">
        <div class="icon-box">⚖️</div>
        <div class="info">
          <div class="quote">5.00 g NaCl (aq)</div>
          <div class="subtext">✓ Pure chemical</div>
        </div>
      </div>
    </div>

  </div>

  
  <div class="summary-strip">
    <div class="summary-item">
      <span class="summary-icon">📏</span>
      <span>SI Metric Units</span>
    </div>
    <span class="operator">+</span>
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      <span>Exact Nomenclature</span>
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      <span>Global Repeatability</span>
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Diferencia entre opinión, creencia y evidencia científica

Argumentar con evidencias en ciencias

La escucha activa en diálogos y mesas de discusión científica

Comparar hipótesis y posturas frente a un fenómeno

Evaluar la solidez de las fuentes de información

Cambiar de opinión a la luz de nuevas pruebas

science

Fundamentos del pensamiento crítico y argumentación con evidencias

科学とは何か

科学的な思考力とは

測定と単位の基礎

メスシリンダーの使い方

電子天秤と上皿天秤の使い方

温度計の種類と使い方

顕微鏡の使い方

科学の基礎と実験器具の使い方

El escepticismo científico como herramienta de conocimiento

Recibir preguntas y críticas a los propios proyectos

Formular preguntas críticas respetuosas ante afirmaciones ajenas

Identificar falacias y sesgos en discusiones cotidianas

Preparación documental para un debate escolar

Participación y moderación en debates sobre temas de actualidad

Síntesis y consensos después de una discusión académica

Diálogo crítico, falacias y debate científico

観察と記録の方法

仮説の立て方と実験計画

データの分析と表現

実験レポートの書き方

観察・記録とデータ分析・レポート作成

¿Qué es un modelo científico y para qué sirve?

Representaciones físicas, analógicas y digitales de la materia

Del geocentrismo al heliocentrismo: revolución en la astronomía

Evolución histórica del modelo del átomo: de Dalton a Bohr

La teoría de la deriva continental y la tectónica de placas

De la generación espontánea a la teoría celular

Coexistencia de modelos: la luz como onda y partícula

Modelos científicos y su evolución histórica

実験の安全と危険物の取り扱い

情報機器を活用した調べ方

評価の意義と自己振り返り

多様な学習活動の工夫

実験の安全と情報活用・探究の広げ方

Modelos climáticos y predicción del tiempo atmosférico

Alcance y limitaciones de los modelos científicos

Cómo avanza la ciencia: provisionalidad y revoluciones

El papel de la tecnología en la creación de nuevos modelos

Crear y evaluar un modelo propio para un fenómeno escolar

Limitaciones y avance de los modelos científicos

物質と物質の性質

密度の計算と意味

密度を実験で測る

浮力と密度の関係

物質の性質と密度

¿Qué son los saberes ancestrales y tradicionales?

Plantas medicinales: del saber popular a la farmacología

Sistemas agrícolas tradicionales: la chagra y las terrazas

Astronomía cultural y calendarios ecológicos regionales

Manejo comunitario del agua en ecosistemas de páramo y selva

Unir el conocimiento científico con el saber popular

Saberes tradicionales y su diálogo con la ciencia

物質の三状態

溶質・溶媒・溶液の区別

溶解度と飽和溶液

溶解度と温度の関係

気体の性質と圧力

物質の分離法

混合物から純物を分離する実験

物質の性質のまとめ

物質の状態・溶液・分離法

Diversidad de formas de vida y adaptación a los biomas

Conservación biocultural: proteger especies y tradiciones

Innovaciones tecnológicas inspiradas en saberes locales

El diálogo intercultural como puente para resolver problemas

Registro y entrevistas de saberes en la propia comunidad

Protección del patrimonio inmaterial y biodiversidad

Conservación biocultural y protección del patrimonio

Structuring Formal Scientific Laboratory Reports

Presenting Scientific Data with Digital Multimedia Tools

Active Listening and Constructive Peer Review in Science

Engaging in Evidence-Based Scientific Debate

Scientific Communication, Technical Reports, and Debate

原子説の成り立ち

原子の構造：陽子・中性子・電子

質量数と原子番号

同位体とは何か

電子配置と電子殻

元素の分類：金属と非金属

周期表の読み方

典型元素とその性質

周期性と化学的性質の関係

原子と元素のまとめ

原子・元素と周期表

La ciencia como empresa colectiva y multidisciplinaria

Roles en el laboratorio escolar: coordinación, registro y materiales

Cumplir mi responsabilidad en el equipo de ciencias

Respetar el ritmo y los aportes de cada integrante

Protocolos de seguridad compartida en el laboratorio

Resolución asertiva de desacuerdos durante la experimentación

Registro colectivo y bitácoras de investigación

Revisión por pares en el aula: coevaluación de informes

Apoyar a un compañero que necesita ayuda en el laboratorio

Celebrar los logros del trabajo en equipo

Ética en la comunicación de resultados y autoría compartida

Trabajo colaborativo y roles en la investigación científica

化学式の読み方と書き方

イオン結合と共有結合の違い

化学反応の特徴

分解反応と化合反応

酸化反応と還元反応

化学反応式の係数合わせ

酸・塩基の性質と中和反応

反応の熱とエネルギー

反応速度と影響する要因

化学反応のまとめ

化学反応と化学式

¿Qué es una controversia sociocientífica?

Debate sobre organismos genéticamente modificados: transgénicos

Energía nuclear, combustibles fósiles y energías renovables

Cambio climático global: causas antrópicas y acuerdos mundiales

Minería, desarrollo económico y protección de cuencas hídricas

Vacunación e inmunización colectiva: salud pública vs. desinformación

Uso de animales en la investigación científica y bioética

Inteligencia artificial y automatización en las ciencias

Análisis de noticias científicas y detección de pseudociencia

Controversias sociocientíficas: análisis crítico de dilemas actuales

運動の記述と基準

速度と速さの違い

等速直線運動とグラフ

加速度の定義と計算

等加速度運動の公式

自由落下運動と重力加速度

水平方向の運動と投射

運動の観察実験

運動の計算問題

運動のまとめ

運動・速度・加速度

Dialogar con la comunidad sobre problemas ambientales

El principio de precaución en políticas ambientales

Participación juvenil en veedurías y proyectos ciudadanos

Redacción de un manifiesto escolar de compromiso científico

Participación ciudadana frente a los desafíos sociocientíficos

力の種類と表し方

力のつり合いの条件

重力と質量の関係

摩擦力とその影響

ニュートンの第一法則：慣性

ニュートンの第二法則：F=ma

ニュートンの第三法則：作用・反作用

力と運動の関係の実験

力と運動の計算問題

力とニュートンの法則のまとめ

力とニュートンの法則

エネルギーの種類

運動エネルギーの計算

位置エネルギーの計算

エネルギーの変換と移動

力学的エネルギー保存則

エネルギーの計算問題

仕事とエネルギーの関係

エネルギーのまとめ

運動エネルギーと位置エネルギー

静電気と電荷

電流と回路の基本

電圧・電流・抵抗の関係

直列回路と並列回路

合成抵抗の計算

電気回路の基礎

Campañas de comunicación y sensibilización ambiental escolar

Trabajo articulado con recicladores de oficio y la comunidad

Medición de indicadores de reducción de basura en el tiempo

Auditoría ambiental escolar y propuestas de mejora continua

Implementación comunitaria y evaluación de la sostenibilidad escolar

電流の磁気作用

フレミングの左手の法則

電磁誘導と発電

日常生活の電気エネルギー

電気回路の実験

電気と磁気の計算問題

電気と磁気のまとめ

電磁気の法則と電気の応用

Búsqueda y curación de fuentes científicas confiables

Estrategias de búsqueda con palabras clave y operadores básicos

Detección de pseudociencia, mitos y noticias falsas en ciencias

Selección de información pertinente para la pregunta de investigación

Dar el crédito correspondiente a las fuentes y autores

¿Cómo hacer fichas bibliográficas y referencias escolares?

El plagio y la honestidad académica en los informes de ciencias

Búsqueda, evaluación y crédito académico en ciencias

波の基本：振幅・波長・周期

波の速度・周期・振動数の関係

波の反射と屈折

音の伝わり方と音速

音の高さ・大きさ・音色

光の反射と鏡

光の屈折とレンズ

波・光・音

OGS.7.SEP.6

Aligned learning resources

Related diagrams