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

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science fair project idea explores substances that cause a bubble to last longer.

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

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Discover whether a metal will expand under hot water.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Test whether plants can grow without sunlight and water.

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Learn whether writing things down really makes things easier to remember.

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

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Discover whether cold or hot water from the faucet will boil faster on the stove.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

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.