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Grade 4 – Science
Ecosystems and food chains; energy; erosion and weathering; experiments with variables.
Goals for this unit
- Describe ecosystems, food chains, and energy transfer; explain erosion and weathering.
- Design experiments that change one variable and record results.
Activity 1: Food chain
Draw or describe a simple food chain (3–4 organisms). Who eats whom?
Activity 2: Energy
Give one example of light, sound, or heat energy. How do we use it?
Activity 3: Experiment
Design an experiment with one variable. What is your question? What will you change? What will you measure?