In this science fair project, students use the streak test to tell minerals apart from each other.

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

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

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.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This science fair project idea explores how length affects the weight a bridge can hold.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

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

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

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.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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

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

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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.