Learn more about Gallimimus, one of the fastest dinosaurs, with this cool dino dot to dot.

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.

Do you measure distance in inches or seconds? When do you use miles? Answer these and more with this third-grade worksheet about the customary system of measurement! 

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!

Explore the applications of electrical energy with this helpful 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!

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

Shed some light on the interactions between objects and light with this science worksheet for kindergarteners and first graders!

Students flex their physical science knowledge by classifying items as solids or liquids in this fourth grade states of matter worksheet.

How do trunks, claws, and flippers help animals? Discover how animals use different parts of their body to meet their needs in this kindergarten and first-grade life science worksheet!

Use a seesaw to see what happens when opposing forces become balanced or unbalanced!

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

What does a dog eat? Kids choose the pictures that show what kind of food each animal likes to eat in this first grade life science worksheet.

Learn about the science behind one of nature's most awesome spectacles: monsoons.

Discover different types of energy with this third- and fourth-grade science worksheet!

Find out more about what REALLY dwells in swamp ecosystems with this worksheet all about swamps.

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

Connect the dots from 1 to 30 to reveal Styracosaurus's mighty horns.

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.

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

Is your little one into creepy crawlies? Test his bug knowledge with a fun crossword puzzle.

Learn the ins and outs of one of the body's most important organs: the heart!