What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

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

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

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 idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Cleaning can be a chore, but not with this sudsy experiment!

Test your friends to find out if you can replicate the placebo effect's incredible results.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

This science fair project idea investigates if fats add to the flavor of food.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

This science fair project idea explores the egg's thin membrane.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.