This science worksheet tells all about James Watt, the man that powered the Industrial Revolution.

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

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?

Without reflective surfaces, this biker would have a much more dangerous ride. Can you find all five reflective surfaces present in this scene?

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.

Does your little gardener know about compost? Test their knowledge of this sensationally smelly earth science process!

These Valentine's Day cards will be the oddest and most unique cards your sweetie ever got!

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.

Learn a little bit about green tree frogs (like that they sleep on the underside of leaves!) and then color in this scene of them at the zoo.

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.

Ecosystems are an important part of fourth grade science. This fun printable will help your child with her knowledge of plants and animals.

What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

This fun worksheet is jam-packed with fun facts, a word search and trivia questions, all about the baboon!

Learn about the badgers that live in Yellowstone National Park.

Looking for a way to brighten your child's enthusiasm for astronomy? Introduce him to the constellations with this worksheet about the constellation Capricorn.

Learn about Yellowstone Park's lynx, the cats that put your average house cat to shame.

Looking for a worksheet to help your kid with science? This printable will help him with human anatomy and vocabulary.

Read about a little-talked-about bird that inhabits the wetlands of Yellowstone National Park, the sandhill crane.

Jaguars eat deer? Wow. Alligators, too? Are you kidding? What don't they eat? There's way more to learn about these intriguing eaters in this cool worksheet.

Butterflies and moths may have very different colors, but they are from the same insect order! Learn about lepidoptera with a fun coloring page.

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of plants.

These printable Valentine's Day cards are perfect for a kid who's in love with animals and science!