Page 157 - Science Course 2 (Book 2)

Mo11-L4: Lesson Review Quiz (Matching)

Direction: On the line before each def nition, write the letter of the term that matches it correctly. Each
term is used only once.

1. Magnets point north when Earth’s magnetic f eld has this. A. magnetic reversal
2. process that forms new oceanic crust and moves it B. mid-ocean ridge
3. takes place when Earth’s magnetic f eld changes C. normal polarity
4. Magnets point south when Earth’s magnetic f eld has this. D. reversed polarity

5. place where new oceanic crust forms E. seaf oor spreading

Mo11-L4: Lesson Review Quiz (True or False)
Direction: On the line before each statement, write T if the statement is true or F if the statement is
false.

6. Seaf oor spreading takes place along a mid-ocean ridge.

7. Oceanic crust is older when it is closer to a mid-ocean ridge than it is when it is farther from
the ridge.

8. The high thermal-energy f ow at a mid-ocean ridge comes from seawater.

9. Magnetic bands on the ocean f oor are evidence that Earth’s magnetic f eld changes.

10. Knowledge of seaf oor spreading could have helped Alfred Wegener gain more support for

his hypothesis of continental drift.

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