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

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Try this chemistry experiment with your curious kid and get some "shocking" results!

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.