Here's an introduction to different types of rocks.

Learn the science of volcanic eruption with this cutaway diagram

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

Learn about a few common insects and arachnids as you color them in!

A fill-in-the-blank exercise on tornadoes, made for fifth grade science students.

Encourage your little environmentalist to learn about composting! Children will boost their reading skills as they learn what compost is and how it helps the environment.

Dig in to the layers of the earth with this science coloring page!

Get swept up in this comprehensive worksheet about the awesome power of dust storms.

Did you know that ocean water is salty, but river water is not? Find out how fresh and salt water mix together in this water cycle worksheet.

Looking for a fourth grade worksheet to help your kid with science? This printable will test his knowledge of the water cycle.

Our solar system has hundreds of moons! Read a bit about how a moon is formed with this lunar lesson.

Do you know how tornadoes form?This science worksheet diagrams what is known about what causes tornadoes to form.

Can your little geologist identify the three main types of rock? Test his earth science savvy with a matching activity.

Explore one of the great mysteries of the universe with this space science worksheet on black holes.

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

Almost half of all known fish species call ponds, lakes, rivers, and other freshwater habitats home. Learn about freshwater fish in this worksheet.

Do you know how clouds form? Get the basic idea of how moisture in the air can become a cloud.

Here's a great worksheet for teaching your kids all about the planet Mercury. Did you know that it's the smallest planet in our solar system?

Third grader today, astrophysicist tomorrow! Let your child research their planet of choice, and discover everything from the number of moons to temperature.

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

Through a simple matching activity, kids learn how their actions can have a direct effect on the environment.

Do you know why Mars is called the Red Planet? Find out that and more on this planet printable.

This earth sciences worksheet offers a simple and informative overview to a fascinating geological phenomenon.

Practice geology vocabulary with this challenging crossword puzzle.

Here are listed a handful of natural resources, for kids to classify as renewable resources and nonrenewable resources.

How did salt ever get into the ocean? Find out how, and then try conducting your own salt water experiment.