When heat is added to a substance describe how the molecules are affected?

the molecules and atoms start to vibrate faster so basically the object starts to expand because the space between atoms increases :)

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying