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.

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!

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

Here's a guide to starting a community clean-up project from scratch.

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

Celebrate April showers with a springtime arts and crafts activity: make sparkly, shiny raindrops with your kid.

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

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

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

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

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

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Want to get your bookworm interested in science? Check out this cool activity that teaches kids how to write science fiction!

Who says snow globes are just for winter? Help your child create a summer version with this fun art project!

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

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

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.

Summer is a great time to work on pre-kindergarten skills that will serve your child well in her first year at school, while having some fun in the sun!

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

In this activity, find out who the flowers' "partners in crime" are by being a flower spy!

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

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

Create a self-portrait from natural materials in this collage craft activity!

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

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

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.

Your kindergartener will have a blast helping you craft these fun, eco-friendly potted place cards.