Skip to main content

That time oxygen almost killed everything

1,913,288 Views

32 Questions Answered

Exploring our Oceans

Let’s Begin…

What if we told you that there was a time when oxygen almost wiped out all life on Earth? 3 billion years ago, when the world was a place you’d never recognize, too much of a good thing almost ruined everything for everybody.

What new atmospheric layer formed as a result of increased oxygen levels?

Watch the video and finish the Think section to complete the lesson.

About Exploring our Oceans

Exploring our Oceans offers insight into the scientific marvels of the marine world, and the part you can play in uncovering the ocean's mysteries and safeguarding its future. From biology to physics to engineering, understanding our oceans involves a multitude of scientific approaches. Dive into our curated videos and supporting lesson materials, and find out how you can be a part of it all.

Meet The Creators

  • Video created by PBS Eons
  • Lesson Plan created by Luka Seamus Wright

More from Exploring our Oceans