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Did you know that one of the main ingredients of a perfect pearl is dust? Learn all about the bizarre process behind every pearl with this science worksheet.

That's not a lake... it's a crater! Get the scoop on some of the world's most well known craters with this space science worksheet.

This worksheet teaches kids about the physics of hockey, applying principles of classical mechanics to an effective slapshot.

Young readers will love biting into this passage's cool piranha facts, and they'll get a nice reading comprehension workout in the process.

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.

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

Young readers will love digging into this passage's cool weedy sea dragon facts, and they'll get a nice reading comprehension workout in the process.

Find out how scientists explain our yawns and use the graph to keep track of your family's yawns for a whole day!

Help your child get to know the most elementary of the elements with this handy worksheet on carbon.

With this worksheet, kids read about the sport of biathlon and gain an appreciation for the skills involved by studying the math and physics behind 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.

Young readers will love digging into this passage's cool shrimp facts, and they'll get a nice reading comprehension workout in the process.

This charming worksheet helps your kindergartener learn about jets, as he pastes the words next to their places in the jet diagram.

Help your budding geologist learn about these common landforms in this worksheet on peninsulas and capes.

The olm is a blind salamander that lives in Europe. Kids will learn how pictures help illustrate concepts with this life science worksheet.