Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Construct batteries that make electricity from fruits with this fun science fair project.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

How well can people recall what they have observed. Test your knowledge in this fun experiment.