examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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!

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

In this design challenge, your child will make a bottle rocket using typical household items.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

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

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

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

This science fair project idea demonstrates that plants give off water.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Is it a square or a circle? See if you can trick your friends with this zany science project!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

How do organic materials become soil? This science experiment measures what materials biodegrade.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

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

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

How well can people recall what they have observed. Test your knowledge in this fun experiment.