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

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

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.

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

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

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.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

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

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

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

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

This clay "painting" activity encourages and supports creative development and critical thinking skills.

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!

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

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.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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

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!

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

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

Is your child a young ornithologist in the making?

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

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

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.

Help your child make a beautiful homemade sandcastle that will last!

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.