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

The silverback gorilla is a special animal. This magnificent male is part of an endangered species. Complete this sheet to learn all about this gentle giant.

The California condor has been brought back from the brink of extinction. This worksheet will help your little bird lover learn all about the condor.

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

Whether you say buffalo or bison, it is still the largest land mammal in North America. Discover a bit more about this majestic animal.

The horned lizard has a scary exterior but a gentle personality. Your little student can learn about this North American lizard with this worksheet.

Help your child learn about facts and opinions in this animal-themed worksheet! Students will read sentences and decide whether they express facts or opinions.

Learn some new words and facts about precious minerals with this word-scramble and matching worksheet.

The Goliath birdeater is a spider that lives in South America. Your child will read a paragraph about spider before writing an opinion sentence.

Did you know that 763 Earths could fit inside Saturn? Learn more fun facts about Saturn on this fun science printable.

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.

Your child will write about his or her favorite animal. Kids will research their favorite animals online or at the library, then write down three facts.

Help your child learn about facts and opinions. Kids will read statements about animals before determining whether each statement is a fact or opinion.

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.

Both of these animals have big ears! Your child will look at the pictures of unusual animals in this worksheet and try to learn some new things about them.

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

Discover the inner workings of basic earth science in this worksheet on temperature.

Discover the symbiotic relationship that helps this angler fish find his next meal!

How much do you know about our home planet? Boost your Earth knowledge with this science printable.

Did you know that insects like dragonflies have life cycles that are very similar to our own? Help your little scientist get to know the circle of life.

Did you know that Uranus can get as cold as -144° Fahrenheit? Learn more about the third largest planet in our solar system on this planet printable.

Learn about a few common insects and arachnids as you color them in!