<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      background-color: #f8f9fa;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      color: #1e2945;
      padding: 8px 10px;
      width: 100%;
    }

    .diagram-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      width: 100%;
      max-width: 680px;
      margin: 0 auto;
    }

    @media (max-width: 480px) {
      .diagram-grid {
        grid-template-columns: 1fr;
        gap: 10px;
      }
      .svg-container {
        height: 220px;
      }
    }

    .panel {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 10px 10px 8px 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
    }

    .panel-title {
      font-size: 13px;
      font-weight: 700;
      color: #1e2945;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      width: 100%;
      flex-wrap: wrap;
    }

    .badge {
      background: #e0f2fe;
      color: #0284c7;
      font-size: 10.5px;
      font-weight: 700;
      padding: 2px 7px;
      border-radius: 999px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .svg-container {
      width: 100%;
      height: 250px;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    svg {
      width: 100%;
      height: 100%;
      max-height: 250px;
      overflow: visible;
    }

    /* Water droplet animations */
    .droplet {
      fill: #38bdf8;
      filter: drop-shadow(0 0 3px #0284c7);
      animation: moveUp 2.4s infinite linear;
    }

    .d1 { animation-delay: 0s; }
    .d2 { animation-delay: 0.6s; }
    .d3 { animation-delay: 1.2s; }
    .d4 { animation-delay: 1.8s; }

    .d-tube1 { animation-delay: 0.2s; }
    .d-tube2 { animation-delay: 0.8s; }
    .d-tube3 { animation-delay: 1.4s; }
    .d-tube4 { animation-delay: 2.0s; }

    @keyframes moveUp {
      0% {
        transform: translateY(140px);
        opacity: 0;
      }
      15% {
        opacity: 0.9;
      }
      85% {
        opacity: 0.9;
      }
      100% {
        transform: translateY(-20px);
        opacity: 0;
      }
    }

    /* Flow pulse on main plant stem */
    .flow-line {
      stroke: #0284c7;
      stroke-dasharray: 6 6;
      animation: flowDash 1.2s linear infinite;
    }

    @keyframes flowDash {
      to {
        stroke-dashoffset: -24;
      }
    }

    .callout-tag {
      margin-top: 6px;
      background: #f0f9ff;
      border: 1px solid #bae6fd;
      color: #0369a1;
      padding: 4px 10px;
      border-radius: 8px;
      font-size: 11.5px;
      font-weight: 600;
      text-align: center;
      width: fit-content;
    }
  </style>
</head>
<body>

  <div class="diagram-grid">
    
    <div class="panel">
      <div class="panel-title">
        <span>Sunflower</span>
        <span class="badge">Whole Plant</span>
      </div>
      
      <div class="svg-container">
        <svg viewBox="0 0 200 270">
          <defs>
            <linearGradient id="skyGrad" x1="0" y1="0" x2="0" y2="1">
              <stop offset="0%" stop-color="#f0f9ff"/>
              <stop offset="100%" stop-color="#ffffff"/>
            </linearGradient>
            <linearGradient id="soilGrad" x1="0" y1="0" x2="0" y2="1">
              <stop offset="0%" stop-color="#854d0e"/>
              <stop offset="100%" stop-color="#543109"/>
            </linearGradient>
          </defs>

          
          <rect x="10" y="8" width="180" height="192" rx="8" fill="url(#skyGrad)"/>
          <rect x="10" y="200" width="180" height="66" rx="6" fill="url(#soilGrad)"/>
          <text x="18" y="218" fill="#fef08a" font-size="11" font-weight="700">Soil + Water</text>

          
          
          <path d="M100,200 Q98,230 96,258" stroke="#fef08a" stroke-width="4" fill="none" stroke-linecap="round"/>
          
          <path d="M99,212 Q75,224 48,236" stroke="#fef08a" stroke-width="2.5" fill="none" stroke-linecap="round"/>
          <path d="M98,226 Q65,240 45,254" stroke="#fde047" stroke-width="1.8" fill="none" stroke-linecap="round"/>
          <path d="M100,214 Q125,226 152,234" stroke="#fef08a" stroke-width="2.5" fill="none" stroke-linecap="round"/>
          <path d="M97,232 Q130,244 155,252" stroke="#fde047" stroke-width="1.8" fill="none" stroke-linecap="round"/>

          
          <rect x="94" y="60" width="12" height="142" rx="4" fill="#22c55e"/>
          
          
          <line x1="100" y1="198" x2="100" y2="65" class="flow-line" stroke-width="3" stroke-linecap="round"/>

          
          
          <path d="M94,135 C60,130 45,105 50,90 C75,90 90,115 94,130 Z" fill="#16a34a"/>
          <path d="M94,130 Q70,113 53,93" stroke="#86efac" stroke-width="1.5" fill="none"/>
          
          <path d="M106,110 C140,105 155,80 150,65 C125,65 110,90 106,105 Z" fill="#16a34a"/>
          <path d="M106,105 Q130,88 147,68" stroke="#86efac" stroke-width="1.5" fill="none"/>

          
          
          <g transform="translate(100, 44)">
            <ellipse cx="0" cy="-20" rx="5.5" ry="11" fill="#eab308"/>
            <ellipse cx="14" cy="-14" rx="5.5" ry="11" transform="rotate(45, 14, -14)" fill="#facc15"/>
            <ellipse cx="20" cy="0" rx="11" ry="5.5" fill="#eab308"/>
            <ellipse cx="14" cy="14" rx="5.5" ry="11" transform="rotate(-45, 14, 14)" fill="#facc15"/>
            <ellipse cx="0" cy="20" rx="5.5" ry="11" fill="#eab308"/>
            <ellipse cx="-14" cy="14" rx="5.5" ry="11" transform="rotate(45, -14, 14)" fill="#facc15"/>
            <ellipse cx="-20" cy="0" rx="11" ry="5.5" fill="#eab308"/>
            <ellipse cx="-14" cy="-14" rx="5.5" ry="11" transform="rotate(-45, -14, -14)" fill="#facc15"/>
            
            <circle cx="0" cy="0" r="13" fill="#713f12"/>
            <circle cx="0" cy="0" r="10" fill="#451a03"/>
          </g>

          
          <g transform="translate(125, 165)">
            <path d="M0,20 L0,0 M-4,6 L0,0 L4,6" stroke="#0284c7" stroke-width="2.5" fill="none" stroke-linecap="round"/>
            <text x="8" y="14" fill="#0284c7" font-size="11" font-weight="700">Up</text>
          </g>
        </svg>
      </div>

      <div class="callout-tag">Roots absorb water</div>
    </div>

    
    <div class="panel">
      <div class="panel-title">
        <span>Xylem Tubes</span>
        <span class="badge">Water Highway</span>
      </div>

      <div class="svg-container">
        <svg viewBox="0 0 200 270">
          <defs>
            
            <linearGradient id="stemOuter" x1="0" y1="0" x2="1" y2="0">
              <stop offset="0%" stop-color="#15803d"/>
              <stop offset="30%" stop-color="#22c55e"/>
              <stop offset="100%" stop-color="#166534"/>
            </linearGradient>
            <linearGradient id="innerFlesh" x1="0" y1="0" x2="1" y2="0">
              <stop offset="0%" stop-color="#dcfce7"/>
              <stop offset="100%" stop-color="#bbf7d0"/>
            </linearGradient>
            <linearGradient id="xylemTube" x1="0" y1="0" x2="1" y2="0">
              <stop offset="0%" stop-color="#0284c7"/>
              <stop offset="40%" stop-color="#7dd3fc"/>
              <stop offset="100%" stop-color="#0369a1"/>
            </linearGradient>
            <linearGradient id="waterGlow" x1="0" y1="1" x2="0" y2="0">
              <stop offset="0%" stop-color="rgba(56, 189, 248, 0)"/>
              <stop offset="100%" stop-color="rgba(56, 189, 248, 0.4)"/>
            </linearGradient>
          </defs>

          
          
          <path d="M25,55 C25,43 175,43 175,55 L175,225 C175,240 25,240 25,225 Z" fill="url(#innerFlesh)" stroke="#86efac" stroke-width="1.5"/>

          
          <path d="M25,55 L25,225 C25,240 45,240 45,225 L45,55 Z" fill="url(#stemOuter)"/>
          <path d="M155,55 L155,225 C155,240 175,240 175,225 L175,55 Z" fill="url(#stemOuter)"/>

          
          <ellipse cx="100" cy="55" rx="75" ry="16" fill="#86efac" stroke="#16a34a" stroke-width="2"/>
          <ellipse cx="100" cy="55" rx="65" ry="12" fill="#dcfce7"/>

          
          
          <g>
            <rect x="58" y="55" width="22" height="170" fill="url(#waterGlow)"/>
            <line x1="58" y1="55" x2="58" y2="225" stroke="#0284c7" stroke-width="2"/>
            <line x1="80" y1="55" x2="80" y2="225" stroke="#0284c7" stroke-width="2"/>
            <ellipse cx="69" cy="55" rx="11" ry="4" fill="#38bdf8" stroke="#0284c7" stroke-width="1.5"/>
            <ellipse cx="69" cy="225" rx="11" ry="4" fill="none" stroke="#0284c7" stroke-width="1.5" stroke-dasharray="2 2"/>
          </g>

          
          <g>
            <rect x="89" y="55" width="22" height="170" fill="url(#waterGlow)"/>
            <line x1="89" y1="55" x2="89" y2="225" stroke="#0284c7" stroke-width="2.5"/>
            <line x1="111" y1="55" x2="111" y2="225" stroke="#0284c7" stroke-width="2.5"/>
            <ellipse cx="100" cy="55" rx="11" ry="4" fill="#38bdf8" stroke="#0284c7" stroke-width="1.5"/>
            <ellipse cx="100" cy="225" rx="11" ry="4" fill="none" stroke="#0284c7" stroke-width="1.5" stroke-dasharray="2 2"/>
          </g>

          
          <g>
            <rect x="120" y="55" width="22" height="170" fill="url(#waterGlow)"/>
            <line x1="120" y1="55" x2="120" y2="225" stroke="#0284c7" stroke-width="2"/>
            <line x1="142" y1="55" x2="142" y2="225" stroke="#0284c7" stroke-width="2"/>
            <ellipse cx="131" cy="55" rx="11" ry="4" fill="#38bdf8" stroke="#0284c7" stroke-width="1.5"/>
            <ellipse cx="131" cy="225" rx="11" ry="4" fill="none" stroke="#0284c7" stroke-width="1.5" stroke-dasharray="2 2"/>
          </g>

          
          
          <g transform="translate(69, 65)">
            <circle class="droplet d1" cx="0" cy="0" r="4.5"/>
            <circle class="droplet d3" cx="0" cy="0" r="4.5"/>
          </g>

          
          <g transform="translate(100, 65)">
            <circle class="droplet d2" cx="0" cy="0" r="5"/>
            <circle class="droplet d4" cx="0" cy="0" r="5"/>
          </g>

          
          <g transform="translate(131, 65)">
            <circle class="droplet d-tube1" cx="0" cy="0" r="4.5"/>
            <circle class="droplet d-tube3" cx="0" cy="0" r="4.5"/>
          </g>

          
          <g transform="translate(100, 24)">
            <path d="M0,10 L0,-4 M-5, 0 L0,-4 L5, 0" stroke="#0284c7" stroke-width="2.5" fill="none" stroke-linecap="round"/>
            <text x="0" y="-9" text-anchor="middle" fill="#0284c7" font-size="11" font-weight="700">To Leaves</text>
          </g>
        </svg>
      </div>

      <div class="callout-tag">Hollow tubes carry water up</div>
    </div>
  </div>

</body>
</html>

Investigating Stems: Supporting the Plant and Moving Water

Celery and Food Dye: Water Transport Investigation

Exploring Xylem Tubes and Plant Veins

science.ks2.y1.t1.s3

Aligned learning resources

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