In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

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?

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Help your child celebrate the summer and the sun by making a sandy seascape.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

In this project students experiment with making music using only glasses of water.

This science fair project idea determines if the color of light affects the growth of plants.

Make edible amber fossils with your second grader to explore the fascinating world of science!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.