We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

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

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

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

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!

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

This activity allows your kindergartener to translate what they observe into a beautiful poem.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

This science fair project idea explores the egg's thin membrane.

Take a trip to the pet store and then make a scrapbook to help your kindergartener learn the difference between living and non living things!

In this activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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