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

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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.

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

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project idea explores whether talking to a plant will help it grow.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This project compares the strength of one, two, and three-ply toilet paper.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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

Learn about this simple machine and make a pulley of your own to use for fun science trials.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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

Do you think heat can affect a plant's growth rate?

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

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project teaches students about wilting and browning of salad greens.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Plants and light seem to be good buddies, but how far does the friendship really go?

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

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.