Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

The project investigates how water and movement affects erosion.

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Here's a pressed leaf card project that puts science and writing together for your second grader.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Make edible amber fossils with your second grader to explore the fascinating world of science!

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

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

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

Learn about nature by making your own mini moss garden.

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?