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

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

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

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

In this project children practice the scientific method while playing with puffy paint.

How do organic materials become soil? This science experiment measures what materials biodegrade.

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.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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

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

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

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

Plants and light seem to be good buddies, but how far does the friendship really go?

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

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.

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

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.

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!