Across
- 2. the energy that an object has because it is moving
- 3. to move from one object to another or one place to another
- 5. anything that has mass and takes up space
- 9. a group of atoms joined together in a particular way
- 11. the total kinetic energy of all the molecules that make up a sample
- 12. to make something safe to eat or drink by heating it
- 14. when something becomes different over time
- 16. same temperature
- 17. to reach a conclusion using evidence and reasoning
- 18. a small part that is meant to show what the whole is like
- 19. tiny organisms that are made of a single cell
- 20. the moment when two objects hit each other
Down
- 1. a set of interacting parts forming a complex whole
- 4. when something stays mostly the same over time
- 6. a measure of how hot or cold something is
- 7. water that is underground
- 8. a number that summarizes a set of data and that can be computed by adding all the
- 10. a balanced state in which a system is stable, such as when two or more samples are at
- 13. the ability to make things move or change
- 15. in a list and then dividing by the number of numbers in the list