How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Teach your child how butter is created by shaking up cream the old-fashioned way.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Using a toy race car kids create a visual model of the Doppler Effect.

Help your child celebrate the summer and the sun by making a sandy seascape.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Start your toy engines -- this is going to be a fast and friction-filled race!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

In this activity your child will create their very own marble maze!

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.