Answer:
5.5
Explanation:
Instead, common objects are used as tools to perform the hardness test: fingernail (hardness = 2.5) copper penny (hardness = 3) glass plate or steel knife (hardness = 5.5)
An explanation inspires new questions and the process of making new observations.
diagram of breasts
Density. Density is the measurement of how much matter is in a substance
