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!

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

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

Help your kindergarten science maven explore the water cycle without getting everything wet.

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.

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

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

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

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

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

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

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

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

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

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Make a spring collage with your child to get them outside and those creative juices flowing!

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

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

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

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

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.

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

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

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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