Find out how scientists explain our yawns and use the graph to keep track of your family's yawns for a whole day!

Unearth fossils in this explorative third-grade worksheet!

Dive into habitat studies with this second- and third-grade worksheet!

Learn how seeds move with this second- and third-grade matching activity!

Dive into a coral reef habitat with this second- and third-grade worksheet!

Analyze fossils with this engaging third-grade science worksheet!

Discover how plants survive in the desert with this third-grade habitat worksheet!

Observe the life cycle of an oriole with this second- and third-grade worksheet!

Dip your toes into a marsh habitat in this second- and third-grade worksheet!

Stroll through the flora of a temperate deciduous forest in this third-grade worksheet!

Decide which plants could live in a grassland with this second- and third-grade worksheet!

Determine which plants would survive in a pond with this second- and third-grade worksheet!

Explore the lush plant life of the tropical rainforest in this second- and third-grade worksheet!

Learn about the life cycle of a wood frog in this second- and third-grade worksheet!

These worksheets help kids understand food webs, an important part of the life science curriculum in fourth grade.

Dig into the past with this third-grade worksheet all about fossils!

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

Decide which plants could survive in the desert with this second- and third-grade habitat worksheet!

Take a trip down to the river with this second- and third-grade habitat worksheet!

Bundle up and discover the animals of the tundra in this second-grade life science worksheet!

Looking for a fourth grade worksheet to help your kid with science? This printable will test his knowledge of the water cycle.

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

Kids find forest animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Kids find grassland animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

Test your third grader's biology knowledge with this worksheet, which challenges him to separate invertebrates from animals with a backbone.