Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

Find out all about the different parts of the eyes and how they work together to make vision possible.

How many machines can you find around the house? You may find them where you least expect it!

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

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!

Put your prediction proficiency to the test in this third-grade physical science worksheet!

Use a seesaw to see what happens when opposing forces become balanced or unbalanced!

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

Do you measure distance in inches or seconds? When do you use miles? Answer these and more with this third-grade worksheet about the customary system of measurement! 

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.