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!

Use this glossary with the EL Support Lesson: Answering "Why" Questions.

Use these vocabulary cards with the EL Support Lesson Plan: Answering "Why" Questions.

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.

Learn about the foundational process of American democracy in this essential worksheet!

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.

Are those leaves falling from the sky? It must be fall! Rake up the scrambled letters to spell out words related to the autumn season.

Explore the sights and sounds of the prairie with this fourth- and fifth-grade reading-comprehension activity!

Looking for some patriotic math practice? Salute the red, white and blue while reviewing times tables with division equations using multiples of 5.

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.

In this worksheet, children read the story of Parks' act of passive resistance, then follow a series of thoughtful prompts to reflect on why the boycott was successful, as well as why it inspired the support of so many people around the United States.

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

Beware of walking under ladders! Find out the origins of this superstition and why people avoid walking under ladders.

What happened and why? Match the events in cause-and-effect pairs in this engaging reading comprehension worksheet!

After your students read an excerpt of The Land of the Blue Flower, ask them to respond to a writing prompt. Encourage them to use comparative works like similarly and unlike.