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.

How cool are chromosomes? Read what Steve the savvy scientist has to say about chromosomes and genes before testing your knowledge with some fill-in-the-blanks.

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

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

Animals are all different and need different habitats to survive. In this science worksheet, there's room for students to draw the habitats for six different wild animals.

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

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.

Play a fun game that combines the periodic table with a classic concentration game.

This thermometer worksheet gives your child practice reading and using a thermometer. Try this thermometer and temperature worksheet with your child.

This changing seasons worksheet helps your child discover how trees change at different times of year. Learn about changing seasons with this worksheet.

In this recycle worksheet, kids color the different recyclable objects, then match them up with their corresponding bin. Try our recycle worksheet on Earth Day.

Get to know your genes with Steve the savvy scientist! Genes help determine everything from your hair color to your height.

Color in this Awesome Anatomy page on the respiratory system and learn about how we breathe!

First graders can learn all about the sun by reading the facts then using what they've learned to label each layer of the sun.

Rain or shine, get ready for some weather watching! Record data to observe the weather patterns over the course of a week.

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

Kids find forest animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Explore your sense of sight with this fun worksheet.

What a wonderful world word search! See if you can find all 10 of the Earth-related terms in the word search.

Kids need lots of things to grow up healthy and strong, and plants do, too! Can your child think of things a plant needs to grow?

Have you ever wondered why water in a drinking glass looks clear while water in the ocean looks blue? Find out why with this fun worksheet!

Help your preschooler learn how trees change each season with this fun cut and paste worksheet.

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

Introduce the basic concepts of sinking and floating with this fun worksheet. Your little one will decide which objects sink, and which ones float!

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

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

Teach your preschooler to choose healthy foods instead of sweets. Help him move his way through the maze by picking out the healthy foods.

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

Studying the human body? Get to know your body inside and out with this muscle diagram.

Here's a fun way to review photosynthesis with your child! She'll show off her science knowledge as she answers questions to complete the crossword puzzle.