Let your kid's knowledge of leaf vocabulary climb as high as a tall, tall tree with this fun word search.

The California condor has been brought back from the brink of extinction. This worksheet will help your little bird lover learn all about the condor.

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

A fill-in-the-blank exercise on tornadoes, made for fifth grade science students.

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

This tree anatomy worksheet will give your little naturalist a better understanding of the parts that make up a tree.

What is the purpose of a narwhal tusk? Explore some interesting new findings about the narwhal, also known as the unicorn whale.

The Goliath birdeater is a spider that lives in South America. Your child will read a paragraph about spider before writing an opinion sentence.

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.

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

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

What is wind energy? Teach your students how we can use the wind to create electricity!

What is water energy? Also known as hydro power, water energy is one of our important renewable resources!

The silverback gorilla is a special animal. This magnificent male is part of an endangered species. Complete this sheet to learn all about this gentle giant.

The horned lizard has a scary exterior but a gentle personality. Your little student can learn about this North American lizard with this worksheet.

Whether you say buffalo or bison, it is still the largest land mammal in North America. Discover a bit more about this majestic animal.

What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

Learn the ins and outs of one of the body's most important organs: the heart!

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.

Did you know that sound is actually caused by movement? Vibrations of particles create the sound that we hear.

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

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

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

Children learn why the light from the sun seems white to us, why we see objects in color, and why the sky is blue in this beautiful and fascinating worksheet.

Shake up your science studies with this worksheet about earthquakes.

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

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

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.

Learn about the features of plant and animal cells in this compare-and-contrast worksheet!