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

Ever wonder about how to make the perfect paper airplane? Learn about the four forces that affect flight with paper airplane physics!

Hypothesis, observation, data...with so many terms, learning the scientific method can be tricky. Learn the steps by helping Dr. McSquare sort out his reports.

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

Dr. McSquare is here to help kids learn the scientific method. His reports are all in disarray--can your child sort label each part with the correct step?

Is your child baffled by the scientific method? Dr. McSquare is here to help! Learn the steps by helping the doctor organize his lab reports.

Learn all about the different jellyfish and then test your knowledge with the questions at the bottom of the page.

Water covers 70% of Earth’s surface—but where exactly is it? Find out in this fifth-grade worksheet!

Track down the missing matter in this fifth-grade science worksheet!

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

Level up your knowledge of ecology in this matching activity!

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

Create your own gravity-powered roller coaster in this creative worksheet!