Learn the difference between behavioral and physical adaptations with this cut-and-paste 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!

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!

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.

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!

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

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.

Blue whale facts include that calves weigh up to three tons at birth and adults can be as heavy as 200 tons. Get other cool blue whale facts on this worksheet.

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

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.

How do clouds form? Why does it rain? Help your student answer some of these questions by completing this water cycle worksheet.

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

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

A natural resource is something that we use that occurs naturally in the environment. Teach your child about the densest and heaviest natural resource: rocks!

Discover what lives in the depths of the sea in this second- and third-grade habitat worksheet!