Super Read! Worksheet 1.1 answers

ANSWERS
Super Read! Worksheet 1.1

1. Chemicals at Work

2 a. Life processes depend on breaking and forming chemical bonds in chemical reactions.
b. Animal antifreeze
c. To explain what happens during a chemical reaction; to show how an enzyme functions

3. Chemcial Reactions; Reation Speed

4. The moelcules become more complex.

5 a. They all show evidence of chemical reactions.
b. The fireworks are reactions that take place quickly. The rusting process is a reaction that takes place slowly.

6. This paragraph tells that, in a chemical reaction, energy can be released and chemical bonds are broken or formed.

7. chemical reaction, enzyme

8. Possible prediction: The section will explain how chemical reactions occur and how the rate of the reactions can change.

9. Answers will vary, depending on predictions.

10. Possible prediction for Section 2.4: The section will tell how chemical reactions make it possible for living things to carry on a variety of activities. Possible prediction for Section 4.5: The section will tell what happens to chemicals when they are mixed with water.