Thermal energy science vocab

4. a small part that is meant to show what the whole is like
6. when something stays mostly the same over time
9. heater: a heating unit that stores and warms water
10. a measure of how hot or cold something is
11. to reach a conclusion using evidence and reasoning
13. the ability to make things move or change
14. tiny organisms that are made of a single cell
16. the moment when two objects hit each other
18. a number that summarizes a set of data and that can be computed by adding all the numbers in a list and then dividing by the number of numbers in the list
19. a group of atoms joined together in a particular way

1. a set of interacting parts forming a complex whole
2. when something becomes different over time
3. to make something safe to eat or drink by heating it
5. energy: the energy that an object has because it is moving
7. energy: the total kinetic energy of all the molecules that make up a sample
8. anything that has mass and takes up space
12. a balanced state in which a system is stable, such as when two or more samples are at the same temperature
15. to move from one object to another or one place to another
17. water that is underground