Vocabulary

4. - the ratio of a material’s mass to its volume
9. method - an organized plan used for gathering, organizing, and communicating information
10. - an instrument that measures temperature
12. - the study of matter and energy and the interactions between the two through forces and motion
14. law - a statement that summarizes a pattern found in nature
16. variable - a variable that changes in response to a change in the manipulated variable
17. - a representation of an object or event
18. - a system of knowledge about the natural world and the methods used to find that knowledge
19. - the straight-line distance between two points

1. - a proposed answer to a question
2. theory - a well-tested explanation for a set of observations or experimental results
3. - the study of the composition, structure, properties, and reactions of matter
5. - the amount of space taken up by an object
6. variable - the variable that causes a change in another variable / the variable that the scientist changes in an experiment
7. - the closeness of a measurement to the true value of what is measured
8. - a gauge of how exact a measurement is
11. - the amount of matter in an object
13. - information obtained through the senses
15. experiment - an experiment in which only one variable, the manipulated variable, is deliberately changed at a time