In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

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

In almost every preschool classroom is a sensory table. Learn how to make one at home!

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This experiment tests which gender is better at catching how a magician performs his tricks.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

In this science fair project, students investigate how different colors influence appetite.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

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.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

In this experiment, you will evaluate whether or not a diet that is supplemented with "brain-enhancing" foods can help improve memory.

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

Want to give your teen some insight into the scientific method and get the house cleaned? This activity promises both!

This science fair project idea demonstrates how our fingers prune when in water.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This experiment explores whether music affects the growth of bacteria and could help figure out better ways to process sewage and other microbe-assisted duties.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.