Across
- 4. unit of measurement.
- 6. The greater the mass of an object, the greater the... is.
- 7. amount of matter or particles in an object.
Down
- 1. some forces can act on an object without touching it.
- 2. we use them in everyday life.
- 3. On Earth, a mass of 1 kg weighs about...
- 5. Force of gravity.