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Browse results: Earth's History

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Caves: Extreme Conditions for Life

Caves: Extreme Conditions for Life

This video segment adapted from NOVA raises the provocative idea that if life can exist in the most extreme environments on Earth — such as in dark, toxic caves — then perhaps living things can also survive in harsh environments on other planets. OER Level

Accessibility features: Audio Description, Caption

6-12

Video

Dating Lava Flows on Mauna Loa Volcano, Hawaiʻi

Dating Lava Flows on Mauna Loa Volcano, Hawaiʻi

In this video segment adapted from NOVA, scientists search for carbonized remains of plants preserved in lava flows to find out how long it has taken rain forests on Hawaiʻi to regenerate after a volcanic eruption. OER Level

Accessibility features: Audio Description, Caption

3-12

Video

Deep-Sea Vents and Life's Origins

Deep-Sea Vents and Life's Origins

Deep-sea vents are home to life forms that do not rely on the Sun's energy. They depend instead on energy from volcanoes on the ocean floor. This video segment adapted from NOVA hypothesizes that life on Earth may have begun in this extreme environment. OER Level

Accessibility features: Audio Description, Caption, Transcript

3-12

Video

How Did Life Emerge Here?

How Did Life Emerge Here?

This video segment adapted from NOVA describes the emergence of life on the islands of Hawaiʻi from a barren volcanic platform under the ocean waves to the rich explosion of life that covers the many climate zones of the islands today.

Accessibility features: Audio Description, Caption

3-12

Video

RESULTS 1-4 OF 4