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 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.

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

Test your knowledge of electrical energy with this third- and fourth-grade 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.

Fossils can tell us about life on earth, but they can also teach kids the scientific method.

Practice describing different objects and substances in this colorful worksheet!

Prepare students for an upcoming science lab with this helpful worksheet!

Ready for liftoff? Take to the starry skies with this worksheet that explores the three basic types of galaxies.

Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

Can your little geologist identify the three main types of rock? Test his earth science savvy with a matching activity.

Got a kid who loves rocks? Encourage your little geologist to learn about the 3 major rock types with this worksheet.

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

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Identify the appearance of the moon during its three main phases which include the New Moon, Quarter Moon, and Full Moon.

This is not your average coloring page. Using only the three primary colors, mix your paints together to form as many colors as possible.

Consider the factors that affect magnetic forces in this informative third- and fourth-grade worksheet!

Your child will write about his or her favorite animal. Kids will research their favorite animals online or at the library, then write down three facts.

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

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

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

Look up into the night sky, and you may see three prominent stars side by side. This is Orion's belt, one of the most well known constellations!

How do the Sun and the Moon interact with the Earth, and how do all three depend on one another? Find out in this science worksheet.

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

Unearth fossils in this explorative third-grade worksheet!

Can you tell which types of weathering caused each of these changes in the earth? This activity is a great way to review the 3 main types of weathering.

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