skip to main content

Eons: How Volcanoes Froze the Earth (Twice)

10 minutes 28 seconds

Now Playing As: Captioned (English) (change)

Over 600 million years ago, sheets of ice coated the planet on both land and sea. How did this happen? And most importantly, why did the planet eventually thaw again? The evidence for "Snowball Earth" is written on every continent today. Part of the "Eons" series.

Media Details

Runtime: 10 minutes 28 seconds

An illustration depicts the dinosaur, Coelophysis, with new born Coelophysis in between its beak.
Eons
Season 2 / Ep 32
10 minutes 37 seconds
Grade Level: 10 - 12
A painting depicts scientists comparing Piltdown Man's remains to other species. Charles Dawson and Sir Arthur Smith Woodward are seen standing together.
Eons
Season 2 / Ep 33
9 minutes 54 seconds
Grade Level: 10 - 12
ASL
An illustration depicts a pair of dinosaurs fighting each other.
Eons
Season 2 / Ep 34
8 minutes 35 seconds
Grade Level: 10 - 12
ASL
An illustration depicts a bat flying in sky.
Eons
Season 2 / Ep 35
11 minutes 9 seconds
Grade Level: 10 - 12
An illustration depicts a pair of reptile like dinosaurs running in a desert. Image credit: Ceri Thomas.
Eons
Season 2 / Ep 36
8 minutes 33 seconds
Grade Level: 10 - 12
ASL
An illustration depicts an extinct animal, the Giant Lemur.
Eons
Season 2 / Ep 37
10 minutes 9 seconds
Grade Level: 10 - 12
ASL
An illustration depicts the earth of 50 million years ago, with a supercontinent Laurasia. Caption, Paleographic animation by C R Scotese.
Eons
Season 2 / Ep 38
11 minutes 3 seconds
Grade Level: 10 - 12
ASL
An illustration depicts a theropod dinosaur, looking into a nest with eggs and newborn dinosaurs.
Eons
Season 2 / Ep 39
7 minutes 28 seconds
Grade Level: 10 - 12
ASL
A skull from the fossils of Homo floresiensis, and a rough sketch of the limbs of the fossil remains are presented.
Eons
Season 2 / Ep 40
9 minutes 10 seconds
Grade Level: 10 - 12
ASL
The sculpture, of a dragon sprawled, at the steps of Kinh Thien palace. Caption: Remains of Kinh Thien Palace.
Eons
Season 2 / Ep 41
12 minutes 18 seconds
Grade Level: 10 - 12