Grade 4 · Ages 9–10

🔬 Science

Grade 4 science explains systems and how energy moves. Students explore how structures help living things survive, how energy flows through ecosystems and circuits, how light and sound behave, and how Earth changes over time.

Start first lesson → All Grade 4 subjects
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1 Structures, function and ecosystems

✓ Structures and their functions 7 min ✓ Energy flow: producers, consumers, decomposers 7 min ✓ When the environment changes 6 min ✓ Classifying living things 6 min

2 Matter and energy

✓ Changes of state 7 min ✓ Conductors and insulators 7 min ✓ Energy can transfer and transform 6 min

3 Electricity, light and sound

✓ Electric circuits 7 min ✓ Light, reflection and how we see 7 min ✓ Sound: pitch and volume 6 min

4 Earth and space

✓ Earth, Moon and Sun 7 min ✓ Weathering and erosion 6 min ✓ Natural resources 6 min
Tip for grown-ups: sit with your child, read each lesson aloud, and let them tap the answer. Every lesson is short on purpose — little and often works best at this age.