CK-12 Foundation
Ck 12: Life Science: Origins of Life
[Free Registration/Login may be required to access all resource tools.] There is good evidence that life has probably existed on Earth for most of Earth's history. Fossils of blue-green algae found in Australia are the oldest fossils of...
Curated OER
National Park Service: Fossils in Time Unit
For this lesson, students learn about the earth's past by studying clues that have been left behind, such as fossils and rocks. Students will find the answers to many questions: What is paleontology?, What is geological time?, What can...
CK-12 Foundation
Ck 12: Life Science: Nonrenewable Resources
[Free Registration/Login may be required to access all resource tools.] A nonrenewable resource is a natural resource that is consumed or used up faster than it can be made by nature. Two main types of nonrenewable resources are fossil...
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Mud Fossils
In this lesson students will look at the major divisions of geologic time and learn about the fossils and forms of life which existed during those periods, helping them to understand how the age of rocks are preserved.
TED Talks
Ted: Ted Ed: How Life Begins in the Deep Ocean
Educator, Tierney Thys, relates the story of a sea urchin's different phases of development while revealing a beautiful tale of fertilization, development and growth in the deep ocean. [6:02]