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.

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!

Without rain, we wouldn't have any puddles to splash and stomp in. Does your third grader know why and how rain falls from the clouds?

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.

Hiccups interrupt us when we're talking and sometimes even get in the way of eating! Find out why we hiccup and discover some unusual ways to get rid of them.

Have you ever wondered why manhole covers are round? It's a good thing to know -- big companies sometimes ask that question in interviews.

Can you explain why your blue shirt is blue? This worksheet is full of facts about light and how it reacts with objects to give us the perception of color.

Find out the the cool science behind ice cubes with this fun worksheet.

Find out how scientists explain our yawns and use the graph to keep track of your family's yawns for a whole day!

Dreams can be delightful or downright terrifying. Discover the science behind dreams and try to figure out what your dreams say about you.

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

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

Ever wonder what makes the leaves change colors in the fall? Find out with this fascinating life science worksheet.

Grandma and grandpa didn't always have gray hair. Find out about what gives our hair color and what makes our hair lose that color as we get older.

Have you ever looked into the night sky and wondered where all those millions and million of stars come from? Find out here with a mini astronomy lesson!

Roses are red, violets are blue, I know the parts of a flower, how about you? Learn about flower anatomy with this worksheet.

Take a trip down to the deep blue sea and learn about the life cycle of a fish! Fish go through the same stages of life as many other living things.

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

How do clouds form? Why does it rain? Help your student answer some of these questions by completing this water cycle worksheet.

Did you know that light could bounce? Set up a light obstacle course with a few mirrors and watch light bounce around your room.

Did you know that one of the main ingredients of a perfect pearl is dust? Learn all about the bizarre process behind every pearl with this science worksheet.

Introduce your flashlight to mirrors. Mirrors are cool surfaces that reflect light just as well as they reflect your face.

Explore the lush plant life of the tropical rainforest in this second- and third-grade worksheet!