With this diagram, kids can find out more about oil, one of our most widely-used natural resources, and learn a little more about where it comes from.

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

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

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.

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

Illustrate each season with this engaging first- and second-grade weather worksheet!

Is a feather liquid, soft, spotted, or heavy? Practice describing everyday objects, or matter, with this second-grade science worksheet!

Learn all about the cumulonimbus cloud, more commonly known by a much more fearsome name: the thundercloud!

What do juice, water, and tea have in common? Compare and contrast matter in this engaging second-grade worksheet!

Learn about the texture and hardness of different objects in this second-grade worksheet!

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

Gear up to go into the science lab with the help of this activity!

Learn more about a tide pool habitat with this life science worksheet for second and third graders!

Learn about Red River Hogs in this series of animals facts sheets and coloring pages in one.

These clever birds harden and disguise themselves as tree branches when threatened. Learn more and do some coloring with this worksheet.

These "Dig It!" worksheets not only teach about life on earth, they teach the scientific method as well.

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

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

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

The narwhal is one unusual animal! Your child will learn about this horned sea creature through text and pictures.

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

Get to know Earth's neighbor a bit more with this Mars coloring page! Your child can read a few fun facts about Mars as he colors.

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

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.

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!

Does your second grader love farm animals? This easy writing exercise will help your child be more observant about tracks left by some familiar animals.

Did you know new species of animals are discovered every year? Color in this little cricket, the only one of his kind who can pollinate plants!

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

This lizard can grow to over six feet long! Color the Golden Spotted Monitor Lizard, one of several brand new species discovered between 2009 and 2011.