What Was the Young Earth Like?
What Was the Young Earth Like? (11:09)
Key Ideas
As this video progresses, key ideas will be introduced to invoke discussion.
Key Ideas
Think about the following questions as you watch the video
- 01:08 What challenges would humans have faced if they lived on the early Earth?
- 07:59 When and how did an explanation for the movement of the Earth’s plates come together?
- 08:57 How does continental crust differ from oceanic crust?
- 09:37 How were the Andes and Himalayas formed?
- 10:59 What is plate tectonics?
- 02:23 Why was the early Earth so hot?
- 03:57 Why is it important that the inner core of the Earth is metal?
- 04:18 How is the mantle different from the core of the Earth?
- 04:40 How is the crust different from the mantle?
- 04:47 How did the Earth’s atmosphere form?
- 06:18 What important hypothesis did Alfred Wegener make about the Earth, and what was his evidence?
- 06:33 What was this supercontinent called?
- 07:04 Why were many scientists unwilling to accept Wegener’s hypothesis?