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

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

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!

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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

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

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

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

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

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

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

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

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