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

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

How powerful is the reaction between baking soda and vinegar? Find out here!

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

In this science fair project, students create their own miniature salt flats at home.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

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

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

In this design challenge, your child will make a bottle rocket using typical household items.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Cleaning can be a chore, but not with this sudsy experiment!

Test your friends to find out if you can replicate the placebo effect's incredible results.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws