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

Do you know where your food comes from? Challenge your child's knowledge of seeds and fruit with this fun match up activity.

Read about Yellowstone's red foxes, some of the most cunning and smart animals around.

Which of these animals are reptiles: turtle, cobra, or jellyfish? Your first grader will ponder this question and more, when it comes to this cute worksheet.

Help your little learner understand the concept of buoyancy with this fun worksheet. He'll decide which items will keep this frog afloat!

Children work on pattern-spotting and observation skills as they determine which of these six type of creatures is a bird.

Looking for a worksheet to challenge your little life scientist's knowledge? This printable is all about matching plants with their trees!

Take a quick lesson in the otters that inhabit Yellowstone National Park and take an even quicker quiz.

Color in Arizona's state bird, the Cactus Wren, the largest wren in North America.

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.

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Read the definitions given for soil, sand and dirt then write down where each element can be found below the pictures.

Teach your child about prehistoric marine species with this trilobite coloring page!

Get into the habit of recycling food waste and other household materials by making your own compost pile!

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.

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!

Teach your child about a new bird, the Magpie, with a fun coloring sheet. She'll read a few fun facts about this species as she colors.

Animal lovers, here is a fun page all about the falcon! Your child will read a few fun facts about this bird, and complete a word scramble.

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

Ready to meet some new tiny friends? Teach your kindergartener the names of eight insects with these fun and colorful flashcards.

Explore the science of the sun with this make-your-own sundial activity! Just do a little bit of cutting and coloring, and let the sun do the rest of the work.

Explore the circle of life with this informative coloring sheet! Help your student color and learn the names of each stage of a flyâs life.

This Earth Day quiz family and friends with this true or false questionnaire. It's all in good, informative, fun!

Did you know that insects like dragonflies have life cycles that are very similar to our own? Help your little scientist get to know the circle of life.

Read about the small population of huge moose in Yellowstone National Park.

Explore the circle of life with this informative coloring sheet! Help your student color and learn the names of each stage of a dragonflyâs life.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

How much do you know about the Snowy Owl? Learn a few fun facts about this species with a fun sheet, including a dot to dot!

What delicious treats do we receive from trees? Your child can draw their favorite tree-provided snacks in this cute drawing worksheet.

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