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

This science fair project idea demonstrates how our fingers prune when in water.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This experiment explores whether music affects the growth of bacteria and could help figure out better ways to process sewage and other microbe-assisted duties.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

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

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

This exploration of different types of energy will help young minds appreciate and observe thermal, kinetic, mechanical, and other forms of energy.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

Build an electroscope, a simple device that measures static electricity, or the freely flowing electrical charges of the atmosphere!

Find out whether matching resonant frequencies can cause objects to shatter.

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science fair project investigates why the number of visible stars changes from place to place.