SSAT Reading Comprehension Practice Test 21

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1. A primary difference between volcanoes and other mountains is in

  • A. their height
  • B. their ruggedness
  • C. their age
  • D. where they are located
  • E. how they are formed

2. A volcanic eruption is likely to be most explosive if magma

  • A. is thin and runny
  • B. is thick and sticky
  • C. rises and collects in magma chambers
  • D. pushes out through fissures in the Earth's surface
  • E. becomes lava

3. The author uses italic print primarily to

  • A. emphasize words that are used in an unusual way
  • B. indicate words that are difficult to pronounce
  • C. point out foreign words
  • D. highlight important terms that are defined in the text
  • E. indicate words that are not necessary to understanding the passage

4. All of the following can be explicitly answered by the passage EXCEPT:

  • A. What factors contribute to hot temperatures deep inside the Earth?
  • B. Why are some volcanic eruptions explosive while others are not?
  • C. As dangerous as eruptions can be, why do lava flows rarely kill people?
  • D. Why does magma rise and collect in chambers?
  • E. Why does pressure build up in magma that is thick and sticky?

5. This passage would most likely appear in

  • A. a newspaper
  • B. a science textbook
  • C. an adventure novel
  • D. a travel brochure
  • E. a safety manual

6. Which of the following statements is NOT true of tephra?

  • A. It can range in size from tiny particles of ash to huge boulders.
  • B. It can travel thousands of kilometers from a volcano.
  • C. It can be found trapped in magma.
  • D. Large tephra falls on or close to a volcano.
  • E. It is the term for rock fragments erupted into the air by volcanoes.