Discover why humans change the world around us in this friendly kindergarten worksheet!

Did you know wolves are the largest members of the dog family? This fun worksheet is jam-packed with fun facts about the wolf!

From the blue whale to the Tasmanian devil, our planet is full of fascinating animals. Find a few of the most interesting ones in this animal word search.

Even colors have best friends. In the world of color, these best friend pairings are called complimentary colors.

Dive into habitat studies with this second- and third-grade worksheet!

Increase your child's vocabulary and knowledge of the scientific world around him with a single sheet!

Without light sources, we wouldn't have any light. Can you imagine a world without any light sources?

What a wonderful world word search! See if you can find all 10 of the Earth-related terms in the word search.

Do you know the Alabama state bird? It's the Yellowhammer, a small yellow bird that is threatened in other parts of the world.

Fact: This worksheet is about unusual animals from all over the world. Opinion: This is the best fact and opinion worksheet ever!

Children will connect their understanding of gases to real-world items as they circle all of the pictures showing gases.

The emu: It's the second-largest bird in the world. How big is it? Let's just say that its eggs can be almost 9 inches long!

Facts about ostrich include that they are the largest birds in the world and that they can't fly, but that's not all. Learn all about this amazing bird!

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.

Dragonflies are some of the oddest looking insects in the world, so it's appropriate that they have so many unique characteristics. Read all about them!

How much do you know about our solar system's planets? Kids learn facts about Neptune in an out-of-this-world worksheet.

Celebrate dolphins, one of the most intelligent animals in the world, with a fun dot to dot coloring page.

These are the largest tortoises in the world, yet they are only two inches long when they hatch! That's one of the facts you can learn from this worksheet.

Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

Learn about spider tortoises, one of the world's tiniest tortoise species, with this handy worksheet. Can't go to the zoo? We bring the zoo to you!

For kids learning geography or earth science, this is the perfect review sheet for drilling students on common geography terms and phrases.

Not your typical crossword, this puzzle will have your child learning to recognize the shapes of the continents. Great for map skills and vocabulary!

Microscopes bring biology to life, allowing us to explore the world's tiniest living things. Have your child create his own organism in the sample slide.

Through a simple matching activity, kids learn how their actions can have a direct effect on the environment.

This worksheet is all about the U.S. space mission of Friendship 7, and will help kids with reading comprehension and U.S. history knowledge all at once.

Let your child put her thinking cap on and take a moment to write about the influence people might have had on the formation of landforms.

Learn to read a standard thermometer in both Fahrenheit and Celsius in this informative second- and third-grade worksheet! 

This beginners worksheet will help your child get all their ducks in a row when it comes to understanding animals that hatch from eggs.

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

What makes a reptile different from an amphibian?  Learn all about animal classifications in this worksheet for second and third graders!