science

2. a measure of the amount of matter in an object.
5. the spreading out of light rays in all directions.
8. the state of matter that has a definite volume but not a definite shape.
9. a material that reduces or prevents the transfer of energy.
12. evidence the observations, measurements, and other types of data that people gather and test to support and evaluate scientific observations

1. any factor that can change in an experiment, observation, or model
3. a testable idea or explanation that leads to scientific investigation.
4. the transfer of energy as electromagnetic waves.
6. a energy material that transfers easily
7. a form of matter that does not have a definite volume or shape.
8. a descriptive statement or equation that reliably predicts events under certain conditions.
10. a physical environment in which phenomena occur.
11. speed the speed at which a wave travels through a medium.