Match each word from column a with the correct definition from column b.
column a
1. element
2. compound
3. reaction
4. catalyst
5. neutralize
6. conservation
column b.
a. to make an acid or base chemically neutral
b. the keeping of animals, people, or places safe
c. a substance made up of two or more elements
d. a substance that is made of only one kind of atom
e. a substance that increases the rate of a reaction but is not used up
f. a process by which certain chemicals interact to form new products

In hard times by charles dickens, mr. gradgrind’s name can be interpreted in several ways. the selection supports all of the following interpretations except he grinds out graduates who are similar to each other as if he were running a factory he grinds the importance of facts into students’ heads he grinds down children by crushing their imaginations he grinds his teeth together, suggesting his intolerance for fantasy

Read the excerpt from a history of the world in 100 objects. power is usually not willingly given, but forcefully taken; and in both europe and america the nineteenth century was punctuated by political protest, with periodic revolutions on the continent, the civil war in america and, in britain, a steady struggle to widen the suffrage. what would be a benefit of reading this text rather than listening to an audio version of it? the reader could analyze the text features in the excerpt. the reader could visualize the description given. the reader could set his or her own pace and reread parts for clarity. the reader could hear the sounds of the political protest.

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