This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Help your young scientist celebrate the wonders of the night sky in the comfort of your own home.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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!

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

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.

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

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

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

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project idea explores whether color affects a person's emotional state.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!