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.

Fossils have a lot to teach us about life on earth, but they can also be used to help teach kids the scientific method.

Discover Earth’s four major systems, or spheres, in this engaging fifth-grade worksheet!

Here are four examples of mineral resources for kids to think about, plus a short explanation of what a mineral resource is.

Review the rock cycle with this second-, third-, and fourth-grade crossword puzzle!

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

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

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

Worm your way through this soil maze, which doubles as a fun way to review the names of the different soil layers.

Can you help Cornelius create a crazy compost concoction? Help your child review his knowledge of compost and recycling with this fun worksheet.

Renewable energy is extremely important for the Earth's future! Test your child's knowledge of renewable resources with this review sheet.

Here's a fun way for kids to review their knowledge of earth science terms. Challenge your child to give a definition of each word as he finds it.

Can you tell which types of weathering caused each of these changes in the earth? This activity is a great way to review the 3 main types of weathering.

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.

This water cycle worksheet is great for 5th grade scientists. Try this water cycle worksheet with your child as a review for test preparation.

Quiz your little scientist on his knowledge of the soil layers! He'll be reviewing some important earth science concepts and key terms.

If your child is fascinated by outer space, he'll love this solar system word search! While reviewing planet names, he'll ponder the mysteries of the universe.

Discover the difference between comets and asteroids in this stellar earth and space science worksheet!

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

The infamous Halley's Comet only comes around once every 75 years or so! Read some interesting info on the world's most famous comet.

What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

Get to know the Apollo 11 space mission in this science and history worksheet!

That's not a lake... it's a crater! Get the scoop on some of the world's most well known craters with this space science worksheet.

Dig your hands into some earth science with this soil sheet! Your little scientist can hone his reading skills as he learns what soil is and how it is formed.

What happens to water after it rains? Learn about the stages of the water cycle in this colorful worksheet!

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

How do clouds form? Why does it rain? Help your student answer some of these questions by completing this water cycle worksheet.

Get to know Earth's star with with this diagram and vocabulary worksheet!

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.

Discover examples of weathering, erosion, and deposition with this fourth-grade worksheet!