Decide what differentiates living vs non-living things! First cut out the items on page 1, and then sort them in the chart on page 2.

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.

Learn about food chains in this cut-and-paste worksheet for first graders!

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

Identify the life cycle of a butterfly with this hands-on worksheet for second and third graders!

Help your child learn about the nervous system and the digestive system with this fun worksheet, which will challenge his knowledge of physiology.

Discover the many different kinds of conifer and deciduous trees as you complete this word search!

To complete this worksheet your first grader will need to match the different animals with their homes.

Give your little animal lover a great coloring sheet, complete with a few fun facts about the red kangaroo!

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

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

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

Complete this simple and engaging exercise about the planet Mars by reading the information and labeling Mars' layers using what you've learned.

How do you know when it's wintertime? Have your child complete this winter writing prompt to exercise writing skills and reinforce seasonal knowledge.

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

If your child loves animals, introduce her to a cool species of bird with this Northern Hawk Owl info sheet, complete with coloring and a crossword.

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.