Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.

What is the water cycle? We're glad you asked! Learn about this amazing natural system that's been working for billions of years.

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

Discover how water flows in this informative environmental science worksheet!

Discover how cover crops enrich soil and support healthy crop growth with this research-based worksheet for fourth and fifth graders!

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

Does your learner ever wonder what makes the Earth dark at night and bright during the day?

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

This worksheet will quiz your child on the different fields of study in science. What's the difference between a zoologist and a geologist? Find out here!

Searching for a worksheet to help your fourth grader with science? This printable will help him with geology.

Invite your child to dream big and design their very own planet. Encourage both creativity and scientific speculation with this fun worksheet.

Take a plunge under the surface of the earth! With this worksheet as your guide, you may explore the geological processes of our planet.

Looking for a fourth grade worksheet to help your kid with astronomy? This printable will help him learn the relative sizes of planets.

Learn about some of the major U.S. watersheds in this fascinating science and geography worksheet!

Looking for a quick reference about gravity and a definition for kids? This two page worksheet and activity has you covered!

Kids can explore ideas of storytelling and science as they fill in this comparison grid with their opinions. Start a conversation of ideas with this worksheet!

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

Dive into the deep, vast world of ocean science with this introductory sheet on the world's different oceans.

Give your kid help with his science skills with this worksheet, which practices natural disaster vocabulary.

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