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

Our ecosystems need a protector; is your third grader up to the challenge? Identify harmful pollutants in a science worksheet that doubles as a coloring page.

Earth has many different land and water features—can you recognize them? Test your knowledge with this crossword puzzle for third and fourth graders!

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

Without rain, we wouldn't have any puddles to splash and stomp in. Does your third grader know why and how rain falls from the clouds?

Discover the animals and plants of the past in this fossil-focused worksheet!

Get to know each of the Seven Summits, then organize their heights into a graph.

What is the Earth made of? Find out everything that goes on just below the surface in this science reading worksheet.

Learn about how the Earth was formed in this science worksheet that covers the early years of the Earth.

What does the Earth look like? Find out all about the nooks and crannies that cover the planet with this landforms worksheet.

How do the Sun and the Moon interact with the Earth, and how do all three depend on one another? Find out in this science worksheet.

This helpful worksheet lays out all the qualifications for planethood. A great way to start studying outer space science!

Life on Earth is vast and varied, from high in the sky to the bottom of the sea. Learn more about what lives on Earth with this reading and quiz worksheet.

What is the Earth? Here is a reading passage and a word search to help your kid get acquainted with Earth science.

Peel back the layers of the earth in this earth science worksheet. Can you name all of them?

Where is the Earth in space? Check out this worksheet that describes where weÃand some of our neighborsÃare in our galaxy.

This solar system worksheet guides your child through the order of the planets. Use this solar system worksheet to learn about the planets in the Milky Way.

Help your budding geologist learn about these common landforms in this worksheet on peninsulas and capes.

Learn how sand dunes form, and a little bit about desert formations like yardangs as well, in this science summary sheet.

For kids learning geography or earth science, this is the perfect review sheet for drilling students on common geography terms and phrases.

Mix a little art into your science with this reading-slash-drawing sheet on hills and valleys.

If you know what each planet looks like, you'll have no trouble with this intergalactic crossword puzzle.

Experience some explosive earth science! Use this diagram to teach your child about the various parts of an active volcano.

Let your child put her thinking cap on and take a moment to write about the influence people might have had on the formation of landforms.

Teach your child about plants with this worksheet, which helps your child practice botanical vocabulary.

Practice naming the planets in our solar system with a fun, visual worksheet! Your child can see the planets in their orbits and try to label each one.

Test your child's science savvy with this worksheet, which asks your child to identify what items are made from plants.

Help kids understand the size and scope of billions of years with this helpful reference worksheet.