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

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Use pepper and soap to discover some fun facts about the properties of water.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

This science fair project idea investigates if fats add to the flavor of food.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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