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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Challenge your learner to design and build a city of their own in this creative engineering activity.

In this project children practice the scientific method while playing with puffy paint.

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

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science fair project idea investigates the difference in reaction times between boys and girls.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this experiment we will be determining whether birds prefer certain colors of seed.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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.

Learn all about balance and motion as your child designs a corn maze!

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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

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.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

This science experiment has students test whether a snail moves faster on concrete or dirt.