Lessons
5.0—What Is Life?
5.1—How Did Life Begin and Change?
5.2—How Do Earth and Life Interact? ?
5.3—Ways of Knowing: Life
Glossary
Other Materials
Resources
About this unit
What makes life so special? Is there life elsewhere in the Universe? And how exactly did life emerge and diversify? In many ways these remain mysteries, but we do have enough evidence to explore some possible answers.