Use sticks and stones to create create an outdoor version of tic-tac-toe!

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

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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

Discover whether a metal will expand under hot water.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

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

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

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

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

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

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

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

How much water comes out of snow? Explore this timely question with your kindergarten scientist with this easy winter experiment.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

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

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

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

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Determine if gender affects the ability to identify different smells.