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

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

In this science fair project, students make their own rain gauge to measure rainfall.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

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!

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

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

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

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

This winter garden project is just about bomb-proof, and believe it or not, it might even make a great gift. So get craft happy with your first grader!

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

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

How much water comes out of snow? Explore this timely question with your kindergarten scientist with this easy winter experiment.

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

Show your preschooler how to create a simple windsock using a colorful piece of tissue paper, a pipe cleaner, and yarn.

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

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

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

Learn about nature by making your own mini moss garden.

Can you think of a way of cleaning dirty water using the sun? In this activity, you will be making a "solar still" that is able to do just that!

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

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

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Help your child add some flair to the family garden with pencil pinwheels!

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!