Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This science fair project examines how seeds hitchhike on animals and clothing.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Help your child make a beautiful homemade sandcastle that will last!

Start your toy engines -- this is going to be a fast and friction-filled race!

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

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

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

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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.