Earth’s Atmosphere. Guiding Question #4. Warm-up 12/3/13. In your science notebook, list 3 facts you know about the Earth’s atmosphere. A Peak at the Earth’s Past Atmosphere. In the Red Science Textbook, READ pages 172-173
Guiding Question #4
In your science notebook, list 3 facts you know about the Earth’s atmosphere.
Earth’s early atmosphere was made of-
Early life on Earth consisted of simple-one celled organisms called PROKARYOTES, that did not need oxygen to survive
…as a result complex one-celled organisms formed, called EUKARYOTES, followed bymulticellular organisms
Pre-Life Present Day
Now that you know how Earth’s Atmosphere has changed from Pre-Cambrian time to the our present day atmosphere, reflect on the following…
Do you think our present day atmosphere will change in the future? Explain. Support with evidence.