Download STUDY GUIDE FOR MIDTERM EXAM These questions will be on

STUDY GUIDE FOR MIDTERM EXAM
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These questions will be on your midterm exam on WEDNESDAY March 15.
100 points total = a MAJOR assessment
You may use old quizzes, notes, handouts, each other, and the book to study.
There are NO NOTES on the midterm- brain only.
Quiz 1:
1. How did the use of sonar change scientist’s ideas about the ocean floor?
2. How do magnetometers work?
3. What is an ocean ridge?
4. How are ocean ridges and trenches evidence of seafloor spreading?
5. What is the study of Earth’s magnetic record?
7. What did scientists find out about the seafloor using magnetometers?
8. What causes the seafloor to spread?
9. Put the steps of seafloor spreading in order:
10. Why is the Atlantic ocean expanding and the Pacific ocean shrinking?
11. How much do tectonic plates move in a year?
12. During what MYA period can scientists START to see the formation of the present day continents?
(the Pangea activity)
13. During what MYA period can scientists see the SEPARATION of North and South America?
14. During what MYA period did the supercontinent Pangea exist?
15-20. Use the figure below to answer the following questions about plate boundaries.
In figure A above DESCRIBE the motion of the two plates:
In figure B above DESCRIBE the motion of the two plates:
In figure C above DESCRIBE the motion of the two plates:
In what figure above would the movements result in an earthquake?
In what figure above would the movements result in mountain building?
In what figure above would the movements result in a fault line or deep valley?
21. During the 80 MYA period, North America was two separate landmasses. Around 40 MYA, the
landmasses pushed together. Currently, North America is one landmass. What feature do you think
formed where these two landmasses collided? (1 sentence) Explain why you think this. (2 sentences)
23. Explain why earthquakes and volcanoes are common at plate boundaries. (2 sentences) Name a
place on Earth that is known for earthquakes OR for volcanoes. (1 sentence)
Quiz 2:
24. What is the theory of plate tectonics?
25. About how many major plates are found on earth?
26. Where are most divergent boundaries found?
27. What types of earth activities happen at divergent boundaries?
28. What are the names of the three types of CONVERGENT boundaries?
28. What type of earth activity happens at transform boundaries?
29. What are the names of the three types of TECTONIC PLATE boundaries?
30. Where is there an active rift valley now?
31. What is a convection current?
32. What activities power convection inside the Earth?
33. What is sub-duction?
34. Can convection currents occur in all fluids? Why or why not? (1 reason)
35. Is an ocean ridge a convergent or a divergent boundary? Why? (1 reason)
36. What is happening at the San Andreas Fault in California? (explain type of boundary, geologic
feature, and earth activity)
37. What is happening at the Mariana Trench in the Pacific Ocean? (explain type of boundary,
geologic feature, and earth activity)
38. Explain what is happening in this picture (of a convection current). Use the words convection,
heating, cooing, rising and sinking in your answer.
Quiz 3:
39. Which planet is NOT a rocky inner planet?
40. Which planet orbits the sun the FASTEST?
41. Which planet has a surface that constantly changes due to weathering and erosion?
42. Which planet has the MOST DENSE atmosphere?
43. Which planet rotates the SLOWEST on it’s axis?
44. Which planet is NOT a gas giant?
45. Which planet is the LARGEST of the planets?
46. Neptune’s gravity affects which planet’s orbit the most?
47. All planets are more dense towards the middle core. TRUE or FALSE?
48. NAME the eight planets in order from the sun. DRAW the approximate size of each planet in
order.
49. Compare (similarities) three pieces of information about Earth and Venus
50. Compare (similarities) three pieces of information about Jupiter and Saturn
51. DRAW the pathway/life cycle of an average sized star. Label the different phases of it’s life.
52. What is the density of Earth? (set up the problem, don’t calculate it)
53. What is the density of Jupiter? (set up the problem, don’t calculate it)
54. Why are the outer planets less dense than the inner planets?
55. If you have a metal cube with a mass of 10g, and the volume is 2 cm3, what is the density?
(calculate this)