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.

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.