Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

In this science fair project, students create their own miniature salt flats at home.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project idea determines what household items are good conductors of electricity.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science fair project idea determines what household items are good conductors of electricity.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This science fair project teaches students about wilting and browning of salad greens.

In this fun activity, your child will create their very own solar oven to bake s'mores!