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

Children get to know a few geology terms in this landform word search puzzle.

This worksheet features a scientific explanation and awesome photos of solar eclipses, which are extremely rare scientific phenomena.

Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.

This worksheet is all about the U.S. space mission of Friendship 7, and will help kids with reading comprehension and U.S. history knowledge all at once.

Use this cool 2-page worksheet to make your own big dipper clock!

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.

Here's a great way to teach your kids more about our solar system. This worksheet focuses on the dwarf planet, Pluto.

Can you and your child come up with a few ways to conserve water in your home? This printable starts you off with five ways to conserve water.

Have you ever looked into the night sky and wondered where all those millions and million of stars come from? Find out here with a mini astronomy lesson!

Ready for liftoff? Take to the starry skies with this worksheet that explores the three basic types of galaxies.

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

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

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

Here's a quick overview of drought and flooding to spark thoughts or conversation with your kids about water.

Does your little gardener know about compost? Test their knowledge of this sensationally smelly earth science process!

Searching for a worksheet that will help your child practice their reading skills? This printable uses life science as a background to help young readers.

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

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.

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

What happens to water as it travels through mushy, smushy wetlands and swamps? Find out all about the water cycle and fill in scientific terms in the swamp.

One of the most famous and easy to spot constellations is the Big Dipper! Formally known as Ursa Major, this constellation was named after a bear.

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

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

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.

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.

Does your child have a knack for astronomy? Teach him about the constellations with this great worksheet.

Quite possibly the most famous constellation, the Big Dipper is a small part of Ursa Major, the big bear constellation.

Constellations are not just named after animals, some of them are named after people! Learn about the constellation Sagittarius with this fun worksheet.