How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

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!

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

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

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.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

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.

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!

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

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

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.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This simple experiment serves as an introduction to the greenhouse effect.

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

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

This easy at-home experiment is a great way to "see" science.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Slip some science into storm watching with a homemade rain gauge!

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

Make a lei and bring a touch of the tropical lifestyle into your home!

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

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

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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!

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

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.