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

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

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.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

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!

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

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

Create a self-portrait from natural materials in this collage craft activity!

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

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

Is your child a young ornithologist in the making?

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

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