To measure the kinetic engery from the inside and outside of something to be able to tell how hot or coll something is.. without touching it also
Answer:
For pure substances, the mass and volume will always be the same or will always change the same way because all substance are the same throughout.
While for mixtures, you can have varying amount of each component therefore mass and volume will not change the same way for substances
The Earth rotates 365 times during each complete revolution.
HOPE THIS HELPS! ^_^
1. the periodic table is arranged in order of atomic number
