BM 2-2 Earth’s Changing Structure
Key standard: 1.c
Reading: Chapter 1.1&2 (p.1-9) 13.1 (p.366-368)
Key terms:
1. Accretion
2. Planetesimal
3. Hydrosphere
4. Atmosphere
5. Geosphere
6. Biosphere
7. Core
8. Mantle
9. Crust
Key questions:
1. List and describe the 4 areas of Earth Science. (p.2-3)
2. List and describe the 4 spheres of the Earth. (p.7)
3. How was the Earth formed? (p.366 & 648)
4. How did the Earth’s layers form? (p.5)
5. What are the 3 different layers of the Earth and what are they made of? (p.8)
6. What was Earth’s first atmosphere like/made of? (p.367)
7. How were the Earth’s oceans first formed? (p.367)
8. What were the first primitive organisms to evolve and what did they release into the atmosphere? (p.367)
9. What happened to the first amounts of Oxygen that were released into the atmosphere? (p.367)
10. How long ago did free oxygen begin to accumulate in the atmosphere? (p.367)
BM 2-2 Earth’s Changing Structure
Key standard: 1.c
Reading: Chapter 1.1&2 (p.1-9) 13.1 (p.366-368)
Key terms:
1. Accretion
2. Planetesimal
3. Hydrosphere
4. Atmosphere
5. Geosphere
6. Biosphere
7. Core
8. Mantle
9. Crust
Key questions:
1. List and describe the 4 areas of Earth Science. (p.2-3)
2. List and describe the 4 spheres of the Earth. (p.7)
3. How was the Earth formed? (p.366 & 648)
4. How did the Earth’s layers form? (p.5)
5. What are the 3 different layers of the Earth and what are they made of? (p.8)
6. What was Earth’s first atmosphere like/made of? (p.367)
7. How were the Earth’s oceans first formed? (p.367)
8. What were the first primitive organisms to evolve and what did they release into the atmosphere? (p.367)
9. What happened to the first amounts of Oxygen that were released into the atmosphere? (p.367)
10. How long ago did free oxygen begin to accumulate in the atmosphere? (p.367)
BM 2-2 Earth’s Changing Structure
Key standard: 1.c
Reading: Chapter 1.1&2 (p.1-9) 13.1 (p.366-368)
Key terms:
1. Accretion
2. Planetesimal
3. Hydrosphere
4. Atmosphere
5. Geosphere
6. Biosphere
7. Core
8. Mantle
9. Crust
Key questions:
1. List and describe the 4 areas of Earth Science. (p.2-3)
2. List and describe the 4 spheres of the Earth. (p.7)
3. How was the Earth formed? (p.366 & 648)
4. How did the Earth’s layers form? (p.5)
5. What are the 3 different layers of the Earth and what are they made of? (p.8)
6. What was Earth’s first atmosphere like/made of? (p.367)
7. How were the Earth’s oceans first formed? (p.367)
8. What were the first primitive organisms to evolve and what did they release into the atmosphere? (p.367)
9. What happened to the first amounts of Oxygen that were released into the atmosphere? (p.367)
10. How long ago did free oxygen begin to accumulate in the atmosphere? (p.367)