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! 

Scorpio, the scorpion, is one of the zodiac signs but you can also find him up in the stars at night!

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

Whoa, this spider is quite the spinster! He is actually one of many brand new species discovered between 2009 and 2011.

Many legends told by ancient people have characters that you can find as star formations called constellations! This one is Andromeda.

Give your child a great coloring page full of fun flower facts! This one is about the iris flower and the butterfly.

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

Walter's Duiker is a new species of duiker, a kind of antelope, and one of many new species discovered between 2009 and 2011.

Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.

In this worksheet, students will read two different passages about the platypus. Kids will compare and contrast the passages, and identify the main ideas.

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.

All living things go through many changes as they grow to be adults! Help your little one understand how he will grow and change.

Natural resources are crucial for sustaining life on the planet. Encourage your child to get to thinking about plants, one of Earth's natural resources.

Color the T Rex Leech! Named for its sharp teeth, he is one of many brand new species discovered in the past two years.

Coyotes' famous howl gave them the nickname "song dogs." This is just one of several coyote facts your child can learn from this worksheet.

Our silkworm facts help your little one understand more about these special invertebrates. He'll read about their life stages and answer some questions.

Get outside and take a stroll! This leaf guide will give your little one a great learning experience the next time you're out at the park.

Looking for a fun way to supplement your child's science learning? Try out a life science crossword puzzle! This one's all about ecosystems.

So what on earth is this funky creature? He is a Louisiana Pancake Batfish, one of several brand new species discovered within the past two years.

Before we knew what the stars were, people would often tell stories about the pictures that the stars formed. This one is called Aquila, the eagle!

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?