9 Best Science Fair Ideas for 7th Grade Students

1. Plant growth in different soils: Study how soil types affect plant growth.

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2. Solar energy efficiency: Compare solar panel designs for maximum efficiency.

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3. Water purification methods: Investigate different techniques for purifying water.

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4. Effects of music on plant growth: Explore how music affects plant growth.

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5. Food preservation methods: Test various methods for preserving food freshness.

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6. Investigating battery life: Compare different types of batteries for longevity.

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7. Magnet strength and distance: Measure how distance affects magnet strength.

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8. Density of liquids: Experiment with liquids to determine their densities.

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9. Effects of exercise on heart rate: Study how exercise impacts heart rate variability.

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