These 12 dinosaur names are all mixed up, and need a dinosaur expert to help unscramble the letters.

Learn more about the animals in the swamp food chain, and find out how each living thing in a swamp ecosystem needs another to survive.

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

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

Our silkworm facts help your little one understand more about these special invertebrates. He'll read about their life stages and answer some questions.

This printable features the planet closest to the sun. Learn Mercury facts and further your knowledge of outer space by discovering new things.

Did you know some baby birds take 10 days to hatch, and some can take 80 days! Learn all about these cute creatures and finish your lesson off with a fun maze.

Animal lovers, get acquainted with a very unique species, the okapi! Read this info-sheet to learn about why this animal is endangered.

How much do you know about our solar system's planets? Kids learn facts about Neptune in an out-of-this-world worksheet.

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

Step up to the controls, Dr. Frankenstein -- the world is in need of a new creature!

Can you tell which types of weathering caused each of these changes in the earth? This activity is a great way to review the 3 main types of weathering.

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

This helpful worksheet lays out all the qualifications for planethood. A great way to start studying outer space science!

How do you make recycled paper? Learn all about the recycling paper process on this informative worksheet.

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

This word search introduces your child to important rocks and minerals vocabulary, as it strengthens his attention to detail.

This page is all about building your kid's natural resources vocabulary words, along with research skills.

This spikey Stegosaurus looks fierce, but don't worry -- he's a vegetarian! Learn all about this massive dinosaur with a fun fact sheet.

This worksheet features Uranus facts. Did you know this planet is blue and spins on its side?

Children get to know a few geology terms in this landform word search puzzle.

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

Did you know butterflies have no teeth? How do you think they eat? Check out this science worksheet to learn all about it.