Think toads and frogs are the same? Think again! Check out this breakdown of the differences between the two, complete with a quiz to check your new knowledge.

Some people think alligators and crocodiles are the same, but there are some distinct differences. Check out this cool worksheet to learn what they are.

What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

Learn the difference between behavioral and physical adaptations with this cut-and-paste worksheet for second and third graders!

Science can be a bit of a bore to some students, but with this quick worksheet on chemical and physical reactions, it can at least be a breeze.

Practice classifying different animals in this engaging life science worksheet, created for second and third graders!

Dive into the electrifying concept of electrical energy in this colorful worksheet!

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

Children discover and review the parts of a flower and what they do as they complete this botany-themed crossword puzzle.

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

Use this cool 2-page worksheet to make your own big dipper clock!

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

Explore the strength of magnetic forces with this worksheet for third and fourth graders!

Get your students’ fingers flying across this paper keyboard as they apply their knowledge of typing with correct finger placement.

In this worksheet, children practice identifying animals of North America by their tracks.

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

Which comes first, genus or phylum? To complete this life science crossword, kids need to put the 9 levels of biological classification in the correct order.

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.

Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

Here's a fun way to review photosynthesis with your child! She'll show off her science knowledge as she answers questions to complete the crossword puzzle.

Cave formations come in all kinds of shapes and sizes; get the scoop on common cave formations with this two page printout with a maze and vocabulary.

The animal names on this third grade science and spelling worksheet are all mixed up! Kids unscramble reptile and bird names to complete the worksheet.

Uncover secrets of the past with this third-grade worksheet about fossils!

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.

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!

Does your child know where Earth is in the Solar System? He'll learn as he completes this fun, planet printable.

As your child completes this science worksheet on the life cycle of a peanut, he'll get the chance to practice his sequencing, labeling, and drawing skills.

Can your child name 10 animals that make their home in the mountains? After completing this worksheet, he'll know all about mountain habitats!

What is the purpose of a hard shell or a long neck? Discover different adaptations with this matching worksheet for second and third graders!