Top Science Fair Project Ideas for 3rd Grade

1. Growing Crystals: Observe how different substances form crystals.

2. Solar System Model: Build a scale model of our solar system.

3. Plant Growth Experiment: Investigate factors affecting plant growth.

4. Magnet Exploration: Explore the properties of magnets.

5. Density Tower: Create a colorful tower showcasing density differences.

6. Rain Gauge Construction: Make a rain gauge to measure rainfall.

7. Eggshell Geodes: Create geode-like structures using eggshells.

8. Balloon Rocket Race: Test how different variables affect balloon rockets.

9. Static Electricity Show: Explore static electricity with simple experiments.

10. Pulley Systems: Build and test different pulley setups for lifting objects.

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