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

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

This worksheet teaches all about the planet Saturn and its placement in the Solar System.

Learn about the California tiger salamander, which uses its toxic, bad smell as a defense.

Explore a tropical rainforest habitat and its inhabitants with this engaging worksheet for third graders!

Identify the appearance of the moon during its three main phases which include the New Moon, Quarter Moon, and Full Moon.

Can you guess how the Screech Owl got its name? Learn some fun facts about this species of owl with a fun info sheet!

What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.

Little gardeners, get to know your plants! See the cycle of a plant from its birth to adulthood, and read a bit about photosynthesis too.

Light can do amazing things, but nothing else brings out its crazy capabilities like the prism. Learn about the dazzling prism and make one of your own.

Don't believe a bird could catch a rattlesnake? Believe it. The greater roadrunner lives up to its name by running up to 20 miles per hour and hunting snakes.

There aren't many blue animals out there, but here's one that will be fun to color: the blue dart frog. Its bright color warns predators that it is poisonous.

Reflect on the effects of habitat change with this third-grade worksheet!

Children match animals to their ecosystems in this life sciences worksheet.

Children label the eight planets of our Solar System in this simple astronomy worksheet.

In this worksheet, children practice identifying animals of North America by their tracks.

In this worksheet, children will learn about the intricate "waggle dance" honeybees use to communicate to each other.

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

Do you measure distance in inches or seconds? When do you use miles? Answer these and more with this third-grade worksheet about the customary system of measurement! 

What is the purpose of a hard shell or a long neck? Discover different adaptations with this matching worksheet for second and third graders!

Study the night sky with this hands-on science worksheet for third and fourth graders!

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

Draw the phases of the moon in this earth sciences worksheet!

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

Unearth fossils in this explorative third-grade worksheet!

Analyze fossils with this engaging third-grade science worksheet!

Learn how seeds move with this second- and third-grade matching activity!

Learn about the life cycle of a wood frog in this second- and third-grade worksheet!

Not your typical crossword, this puzzle will have your child learning to recognize the shapes of the continents. Great for map skills and vocabulary!