Big News About Old Rocks

Which of the following statements about the Grand Canyon is NOT true?

• The canyon is very old

• The canyon has rocks

• The canyon is well-known

• The canyon is small

Tags

CCSS.RI.11-12.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

Rebecca Flowers and other scientists used new methods to examine the canyon’s rocks. What was the effect of their work?

• They learned that the canyon may be older than once thought

• They discovered that the canyon was larger than people thought

• They found a new part of the canyon that was hidden from view

• They found evidence that the Colorado River cut through Earth’s crust

Tags

CCSS.RI.4.3

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.7.3

CCSS.RI.8.3

What can you conclude after reading the passage?

• The Grand Canyon will now receive fewer visitors

• Most geologists will lose interest in the Grand Canyon

• Scientists don’t all agree on when the canyon formed

• Most scientists agree that the canyon isn’t worth studying

Tags

CCSS.RI.11-12.2

CCSS.RI.9-10.1

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

Read this sentence from the passage:

“Different [parts] of the canyon evolved at different times,” Flowers told ScienceSpin.

Based on the text, the word evolved most nearly means

• Developed

• Disappeared

• Twisted

• Advanced

Tags

CCSS.RI.11-12.4

CCSS.RI.8.4

CCSS.RI.9-10.4

CCSS.RL.11-12.4

CCSS.RL.9-10.4

Which statement best describes the central idea of this passage?

• Scientist Rebecca Flowers enjoys studying Earth’s history

• Millions of people visit the Grand Canyon every year

• Research reveals new clues about the Grand Canyon

• The Grand Canyon formed millions of years ago

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RL.11-12.2

CCSS.RL.8.2

CCSS.RL.9-10.2