Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Is your child a young ornithologist in the making?

This science fair project idea investigates how the shape of an object affects drag.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

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.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

Slip some science into storm watching with a homemade rain gauge!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.