Chpt 1 Vocab

4. - a system of knowledge about the natural world and the methods used to find that knowledge
8. variable - the variable that causes a change in another variable / the variable that the scientist changes in an experiment
9. - the use of scientific knowledge to solve practical problems
10. - the amount of matter in an object
12. - refinement in a measurement, calculation, or specification, especially as represented by the number of digits given
13. - the study of matter and energy and the interactions between the two through forces and motion
16. - the study of the composition, structure, properties, and reactions of matter
18. - the amount of space taken up by an object
19. - information obtained through the senses
20. experiment - an experiment in which only one variable, the manipulated variable, is deliberately changed at a time
21. law - a statement that summarizes a pattern found in nature
22. notation - a way of expressing a value as the product of a number between 1 and 10 and a power of 10

1. variable - a variable that changes in response to a change in the manipulated variable
2. factor - a ratio of equivalent measurements that is used to convert a quantity from one unit to another
3. - the degree to which the result of a measurement, calculation, or specification conforms to the correct value or a standard
5. - a proposed answer to a question
6. - a representation of an object or event
7. - the straight-line distance between two points
11. method - an organized plan used for gathering, organizing, and communicating information
14. theory - a well-tested explanation for a set of observations or experimental results
15. - the ratio of a material’s mass to its volume
17. - an instrument that measures temperature