Roller Coaster Reading

Greg would like to provide a more effective controlling idea for his paper. Which sentence should replace sentence 8 to effectively state the controlling idea of this paper?

• Quite a bit of knowledge is needed to figure out how the best roller coasters work

• Hard work, science, and having lots of other skills are needed to design popular roller coasters.

• Roller coasters have to be fun, so the scientists who design and build them must know something about amusement parks

• Designing an exciting roller-coaster ride involves imagination and creativity, but it also requires using science.

Greg would like to use a more appropriate word in sentence 14. Which word should replace lower in this sentence?

• depart

• extend

• desend

• increase

Which sentence in the third paragraph (sentences 16–23) is extraneous and shouldbe deleted?

• Sentence 16

• Sentence 18

• Sentence 19

• Sentence 20

Which word would be a more precise word to use than good in sentence 5?

• thrilling

• beneficial

• friendly

• favorable

Why is it important to consider the design when making a roller coaster?

• So that it is the most fun

• So that the roller coaster does not cause harm

• So that the roller coaster can be big

• So that the roller coaster does not make a lot of noise

What two scientific aspects are important to consider when designing a roller coaster?

• gravity

• sea level

• friction

• color

Why are steel roller coasters better than wooden roller coasters?