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?

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Discover how and which salt melts ice the quickest.

In this science fair project, students make their own rain gauge to measure rainfall.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea explores the different properties of matter.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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

This science fair project idea identifies trees using a dichotomous key.

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

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

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.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science fair project idea determines what household items are good conductors of electricity.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

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

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

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.