Chapter 1 Vocab

3. information obtained through senses.
5. a system of knowledge about the natural world and the methods used to find that knowledge.
6. a proposed answer to a question.
7. a representation of an object or event.
8. a way of experssing a value as a product of a number between 1 and 10 and a power of 10.
9. a ratio of equivalent measurements that is used to convert a quantity from one unit to another.
12. the study of the composition, structure, properties, and reactions of matter.
14. the amount of space taken up by an object.
17. the ratio of a material’s mass to volume.
18. the study of matter and energy and the interactions between the two through forces and motion
19. a well-tested explanation for a set of observations or experimental results.
20. the straight line distance between two points.

1. an instrument that measures temperatures.
2. method an organized plan used for gathering, organizing and communicating information.
4. the use of scientific knowledge to solve practical problems.
10. an experiment in which only one variable, the manipulated variable, is deliberately changed at a time.
11. a variable that changes in response to a change in the manipulated variable.
13. the variable that causes a change in another variable.
15. the amount of matter in an object.
16. a statement that summarizes a pattern found in nature.