- A large rock is usually heavy in weight
- Kilogram is usually used to measure heavy objects
- So, kilogram can be used to measure the large rock

So, kilogram can be used to measure the large rock
Question: Garrett collected some large rocks from a stream near his home. He measured the rocks on a balance. When he records the mass of the rocks, which units should Garrett use?
Context: - A large rock is usually heavy in weight 
- Kilogram is usually used to measure heavy objects