Thermal Energy Vocab Crossword

2. water that is underground
6. the moment when two objects hit each other
7. 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
8. a heating unit that stores and warms water
10. a group of atoms joined together in a particular way
11. a small part that is meant to show what the whole is like
14. to make something safe to eat or drink by heating it
15. a set of interacting parts forming a complex whole
18. to reach a conclusion using evidence and reasoning
19. the energy that an object has because it is moving

1. to move from one object to another or one place to another
3. when something becomes different over time
4. the ability to make things move or change
5. tiny organisms that are made of a single cell
9. the total kinetic energy of all the molecules that make up a sample
12. a balanced state in which a system is stable, such as when two or more samples are at the same temperature
13. when something stays mostly the same over time
16. a measure of how hot or cold something is
17. anything that has mass and takes up space