Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

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

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

The purpose of this science fair project is to build a basic radio.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

This biodiversity project examines the biodiversity in your own backyard.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

This science fair project idea compares biodiversity between drops of water.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

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.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.