Physical Science Unit 0 Vocab

3. the study of matter and energy and the interactions between the two through forces and motion
5. the amount of space taken up by an object
6. information obtained through the senses
9. the amount of matter in an object
11. the straight-line distance between two points
14. a relationship between two variables in which their ratio is constant
16. a gauge of how exact a measurement is
18. a well-tested explanation for a set of observations or experimental results
21. the variable that causes a change in another variable
24. all the digits in a measurement that are directly measured, plus the last digit, which is estimated
27. a ratio of equivalent measurements that is used to convert a quantity from one unit to another
28. a proposed answer to a question
29. a system of knowledge about the natural world and the methods used to find that knowledge

1. the use of scientific knowledge to solve practical problems
2. an organized plan used for gathering, organizing, and communicating information
4. a way of expressing a value as the product of a number between 1 and 10 and a power of 10
7. a variable that changes in response to a change in the manipulated variable
8. the study of the univers beyond Earth
10. the steepness of a line, equal to the ratio of a vertical change to the corresponding horizontal change
12. the study of the composition, structure, properties, and reactions of matter
13. an experiment in which only one variable, the manipulated variable, is deliberately changed at a time
15. an instrument that measures temperature
17. a relationship in which the product of two variables is a constant when all other variables are held constant
19. a statement that summarizes a pattern found in nature
20. the ratio of a material's mass to its volume
22. the study of life and life processes
23. the closeness of a measurement to the true value of what is measured
25. the study of the origin, history, and structure of Earth
26. a representation of an object or event