Learn the difference between behavioral and physical adaptations with this cut-and-paste worksheet for second and third graders!

Children hone their powers of observation using this worksheet template.

Budding scientists will learn about the density of salt water and perform an experiment with food coloring, salt water, and fresh water.

Dive deep into your body's circulatory system with this worksheet on blood and what it's made of.

Is your fourth grader learning about electricity? This worksheet is all about circuits, tests her skills and reinforces the concept of how a circuit works!

There's a lot happening beneath the waves, including the ocean food web. Take a closer look with this colorful printable.

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

The Earth is very much alive, even its rocks shift and change. Practice geology vocabulary with this challenging word search.

This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

Children will learn important facts about food chains in these worksheets.

Looking for a fourth grade worksheet to help your kid with science? This printable will test his knowledge of the water cycle.

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

Which comes first, genus or phylum? To complete this life science crossword, kids need to put the 9 levels of biological classification in the correct order.

How did salt ever get into the ocean? Find out how, and then try conducting your own salt water experiment.

A useful overview of terrestrial biomes, including a climate key.

What's the difference between renewable and non-renewable energy? Help your student discover the various forms of energy we use each day.

Does your budding biologist know his plant parts? Get a great review of some important plant vocabulary with this info page.

Looking for a way to teach your kids all about the planets? This worksheet is the way to go. It features Venus, the second planet from the sun.

Help your student become aware of everyday energy use with this fill-in-the-blank worksheet.

Do you know why Mars is called the Red Planet? Find out that and more on this planet printable.

Budding scientists can learn about an important physical science concept with this worksheet all about density!

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

Looking for a fun way to supplement your child's science learning? Try out a life science crossword puzzle! This one's all about ecosystems.

A handy worksheet that breaks down the properties of metal. A good physical science review sheet to keep around for reference.

Did you know that ocean water is salty, but river water is not? Find out how fresh and salt water mix together in this water cycle worksheet.

There are some parts of our brains that are still too complicated for scientists to understand! Find out the basics of the brain's functions with this fun page.

Budding paleontologists will refer to a word bank to identify 10 dinosaur-related vocabulary words in this playful word search puzzle.

Here's a great worksheet for teaching your kids all about the planet Mercury. Did you know that it's the smallest planet in our solar system?

Learn about the many different biomes the Earth is home to in this life science worksheet, which holds the answers to some simple life science questions.

Learn more about what lives--and what thrives--in marshes with this fill-in-the-blank worksheet on marsh ecosystems.