Use this engaging worksheet to introduce students to the geologic time scale and the pieces of evidence scientists use to determine Earth’s history!

Explore the difference between natural and artificial selection with this engaging life science worksheet for middle grades!

Discover how animal behaviors increase the probability of successful reproduction and offspring survival with this middle school science worksheet!

Explore how the fossil record is used to study the evolution of organisms in this engaging science worksheet for middle grades!

Students compare structures in the bodies of different organisms in order to draw conclusions about evolutionary relationships in this life science worksheet!

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

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

What do a raven, a bat, and a wolf have in common? Similar skeletal structures! In this Halloween worksheet, middle-grade students will explore homologous structures in different animals. 

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

Why do some desert animals have large ears? Why do others have scales? Learn the answers to these questions and more with this life science worksheet!

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!

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

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

Unearth fossils in this explorative third-grade worksheet!

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

Explore a forest habitat with this life science worksheet for second 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!

Discover the animals and plants of the past in this fossil-focused worksheet!

Analyze fossils with this engaging third-grade science worksheet!

Have you considered why elephants have trunks, or why polar bears have thick fur? Reflect on animal adaptations with this fourth-grade worksheet!

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

Explore a wetland habitat with this engaging short-answer worksheet for second and third graders!

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

Learn more about a tide pool habitat with this life science worksheet for second and third graders!

Explore the vast ocean with this habitat worksheet for second and third graders!

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

Explore grasslands and their fauna in this thought-provoking worksheet!

Dive into a coral reef ecosystem with this life science worksheet!

Deserts might seem inhospitable to life, but there are actually plenty of animals that can live there!