Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

This kids' activity is fun to perform and impressive to watch. Plus, it's a great example of Newton's First Law of Motion at work.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Experiment with the wonders of pressure and condensation by crushing a soda can with nothing but air and water!

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Try this chemistry experiment with your curious kid and get some "shocking" results!

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

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

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

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.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.