Exercise 6 Page 76 1. drinking water 2. dirty drinking water 3. the way to keep water Exercise 7 Page 77 1. galileo galilei the first modern scientist 2. galileo’s study how things fall 3. contra about galileo’s study Exercise 8 Page 78 1. how to make tea 2. the grow coffe in the world 3. orange juice Exercise 9 Page 80 1. clothes can tell about a person (b) 2. clothes have to be chosen carefully when you travel (b) 3. clothes today are different from the clothes of the 1800s (c) Exercise 10 Page 81 1. chemistry studied chemicals in srange ways (c) 2. robert boyle helped build the science of alchemy (a) 3. antoine lavoisier learned an important fact by doing experiments (a)
