Across
- 2. cannot be broken down into any other substance
- 5. the force exerted per unit area of surface
- 7. the mass per unit volume
- 9. property the way a substance reacts with others to form new substances with different properties.
Down
- 1. smallest particle that has properties of an element
- 3. assumes the shape of the part of the container
- 4. flows easily, compressible
- 5. Property substance that can be observed without changing
- 6. theory all matter is made up of atoms
- 8. retains a fixed volume and shape
- 9. substance made up of atoms