Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

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

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

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

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

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

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

Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

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

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

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

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!

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

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?

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.

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

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

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.

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

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