Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Do different types of oil mix or stack? Find out in this science fair project idea!

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

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.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

This science fair project idea investigates whether air has mass and weight.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

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

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This project determines what category of person is most likely to be ticklish.