Determine how good we are at direct and indirect observation.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

Examine how a battery can be made from everyday materials.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

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.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

This science fair project idea investigates how color affects temperature.

The project researches how lubricants affect the mechanical advantage of a pulley.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

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

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

Will the shape of an ice cube impact how fast the ice melts?

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Can you think of a way of cleaning dirty water using the sun? In this activity, you will be making a "solar still" that is able to do just that!

This science fair project idea determines how your body responds to allergies.

If you hold a fire up to a balloon, it pops instantly. What if you could prevent this from happening? In this project, we do just that.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

Show your teen how to analyze the nutritional value of her favorite meals. She may be surprised to find out how healthy--or not--her favorite foods are!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Discover how and which salt melts ice the quickest.

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.