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Public learning track
Cells, Specialized Tissues, and Neural Signaling
4th Grade · Track 124 of 447 · 6 lessons
6 lessons
Goal
Explain cells as the basic unit of life, describe hierarchical biological organization, and model how specialized cells like neurons transmit signals.
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The Cell: Structural Basis of Living Organisms
Public learning track
Earth's Hydrosphere and the Water Cycle
4th Grade · Track 125 of 447 · 8 lessons
8 lessons
Goal
Explain how solar thermal energy and gravity drive the continuous movement and state changes of water through Earth's systems.
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Water on Earth: Saltwater vs. Freshwater Distribution
Public learning track
Scientific Questions, Hypotheses, and Fair Test Design
4th Grade · Track 126 of 447 · 7 lessons
7 lessons
Goal
Learners will formulate testable questions, write explanatory hypotheses, and design controlled experiments by identifying and manipulating variables.
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Asking Testable Versus Non-Testable Scientific Questions
Public learning track
States of Matter, Physical Properties, and Phase Changes
4th Grade · Track 127 of 447 · 9 lessons
9 lessons
Goal
Classify solids, liquids, and gases by measuring mass, volume, temperature, and relative density, and investigate state changes caused by thermal energy transfer.
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Comparing the Properties of Solids, Liquids, and Gases
Public learning track
Dynamic Earth: Tectonic Plates and Landform Changes
4th Grade · Track 128 of 447 · 7 lessons
7 lessons
Goal
Examine Earth's layered internal structure, plate tectonic movements, and the geological processes that build and reshape surface landforms.
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Inside Earth: Crust, Mantle, and Core
Public learning track
Human Organ Systems, Teeth, and Biomechanics
4th Grade · Track 129 of 447 · 6 lessons
6 lessons
Goal
Examine digestive organs and dentition in processing food, and investigate biomechanical forces acting on the skeletal system.
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Labelling the Digestive System: Organs and Their Functions
Public learning track
Mixtures, Solutions, and Conservation of Mass
4th Grade · Track 130 of 447 · 8 lessons
8 lessons
Goal
Investigate different types of mixtures and solutions, separate them using physical properties, and prove that mass is conserved.
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Distinguishing Mixtures from Pure Substances
Public learning track
Precision Laboratory Tools, Field Equipment, and Safety
4th Grade · Track 131 of 447 · 10 lessons
10 lessons
Goal
Learners will master lab safety protocols and use calibrated scientific instruments to collect precise qualitative and quantitative data.
Public learning track
Classifying Organisms and Dichotomous Keys
4th Grade · Track 132 of 447 · 6 lessons
6 lessons
Goal
Classify plants, animals, and microorganisms using structural traits and build dichotomous keys to identify diverse species.
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Comparing Microorganisms, Plants, and Animals
Public learning track
Data Organization, Graphing, and Error Analysis
4th Grade · Track 133 of 447 · 8 lessons
8 lessons
Goal
Learners will organize scientific data across structured tables and visual graphs, detect cause-and-effect patterns, identify experimental errors, and draw valid conclusions.
Featured Diagrams
Structuring Data Tables with Units and Trials