Thermal Energy

2. a group of atoms joined together in a particular way
5. a set of interacting parts forming a complex whole
10. a balanced state in which a system is stable, such as when two or more samples are at the same temperature
12. a small part that is meant to show what the whole is like
14. energy: the energy that an object has because it is moving
15. a measure of how hot or cold something is
16. the ability to make things move or change

1. the moment when two objects hit each other
3. to make something safe to eat or drink by heating it
4. 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
6. water that is underground
7. to reach a conclusion using evidence and reasoning
8. when something stays mostly the same over time
9. anything that has mass and takes up space
11. tiny organisms that are made of a single cell
13. when something becomes different over time