ESC1000 EARTH AND SPACE SCIENCE EXAM 1 STUDY Questions with Correct Solutions

ESC1000 EARTH AND SPACE SCIENCE EXAM 1 STUDY Questions with
Correct Solutions

Question:
1. Big Bang

Answer:
Expansion of the universe - not an explosion


Question:
2. Fusion

Answer:
Hydrogen combines to form helium and provides the Sun's energy


Question:
3. Nebula

Answer:
A large cloud of material from which stars can form as gravity brings materials together.


Question:
4. Nebular Hypothesis

Answer:
Explanation for the formation of a solar system from a nebula


Question:
5. Inner Core

Answer:
Solid; mainly iron and nickel


Question:
6. Outer core

Answer:
liquid; mainly iron and nickel


Question:
7. Mantle

Answer:
Rock containing lighter elements such as silicon and oxygen

, Question:
8. Crust

Answer:
Earth's outer layer


Question:
9. Magma

Answer:
Molten rock beneath Earth's surface


Question:
10. Lava

Answer:
Molten rock at Earth's surface


Question:
11. Hadean

Answer:
Very early period of Earth history when Earth was extremely hot/molten


Question:
12. Great Bombardment

Answer:
Early period when Earth was repeatedly struck by leftover solar-system objects.


Question:
13. Alfred Wegener

Answer:
proposed the theory of continental drift Evidence included tropical fossils in cold places,
glacial evidence in hot places, matching mountain/rock belts, and matching fossils across
continents. He had evidence that continents moved but could not explain the mechanism that
moved them.


Question:
14. Pangaea

Answer:
supercontinent in which the continents were once joined