All the animals in this word search share one characteristic: none of them have bones! Can your child find the boneless critters hidden in the puzzle?

Grab your trusty flashlight and get ready for a scientific treasure hunt!

Use your powers of prediction to project the future movement of playground objects!

Analyze everyday objects and identify states of matter with this second- and third-grade science worksheet!

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.

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.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Blast off deep into space with this science worksheet featuring the dwarf planet, Pluto.

If you know what each planet looks like, you'll have no trouble with this intergalactic crossword puzzle.

Test your little nature-lover's knowledge about our feathery friends. Can she figure out which bird fits each description?

Teach your child about the layout of the Solar System with this simple worksheet, featuring the planet Neptune.

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.

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! 

Who will win the marble race in this two-page physical science worksheet?

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