Reading text 1-20

According to the passage, what do scientists still need to learn about the organization of molecules?

According to the passage, who was the first African-American to receive national recognition for his writing?

According to the passage, hermit crabs occupy vacant shells for ...

According to the passage, the lyrics of blues and spirituals are often concerned with...

According to the passage, a hermit crab changes shells when it ...

According to the passage, water molecules join together as a result of ...

According to the passage, when did the first written African-American literature appear?

To produce new molecular crystals, chemists must choose all of the following EXCEPT ...

According to the passage, what form dominated African-American literature in the 19th century?

According to the passage, a hermit crab settles into its new "mobile home" ...

According to the passage, Charles W. Chestnut was one the first writers to...

According to the passage, a snowflake is formed by...

According to the passage, a hermit crab enters a new shell...

By making use of forces that assemble molecules into natural crystals, scientists can ...

According to the passage, the way in which hermit crabs locate empty shells is through which of the following senses?

A crab investigates a vacant shell for all of the following EXCEPT...

Which of the following is NOT mentioned in the passage as part of the oral tradition of African-Americans?

According to the passage, what reason do researchers have for studying how molecules organize themselves to form crystal

According to the passage, an important part of early African-American literature was...

According to the passage, the task of synthesizing a molecular crystal can be compared to ...