What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

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

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

It's easy to plant your own in-home container garden! This planter contains pizza-themed herbs and is a perfect early gardening activity for kindergarteners.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

In this activity, you'll send your kindergartener on a scavenger hunt to find sounds and create a sound recording. Here's how!

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Learn with makes water molecules work with this fun and easy science activity!

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

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

Science fair project that examines condensation and the conditions needed in order for dew to form.

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.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

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

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

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Create a bee garden to help shelter bees in your area.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

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