What's a crater, and how does it happen? Here's a kindergarten experiment with safe, nontoxic ingredients.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

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.

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.

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!

This plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

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

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

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

What better way to nurture your child's imagination than by making a fairy house out of materials found in nature!

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.

Show your child the solar system and let them explore the stars and space by creating a painting. It's a fun and easy way capture your child's imagination.

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

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.

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

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.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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.

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

In this activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

Is your child a nature nut with an eye for creative, green-friendly projects? Introduce them to this amazing DIY bird feeder!

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

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

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