Across
- 5. a measure of how hot or cold something is
- 6. a set of interacting parts forming a complex whole
Down
- 1. water that is underground
- 2. anything that has mass and takes up space
- 3. to reach a conclusion using evidence and reasoning
- 4. a group of atoms joined together in a particular way
- 6. a small part that is meant to show what the whole is like