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!

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.

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

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

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.

Rainbows look like swipes of brightly colored paint hanging in the sky. Have you ever wondered how they got there?

Why do some objects make loud sounds when dropped, while others make quiet sounds?

Get charged up about static electricity with this informative fourth- and fifth-grade 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.

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

Children learn the fascinating physics behind lightning, along with a few fun facts, in this physical science worksheet.