states of mater ××

Question 1

name the three states of matter, and the physical changes that occur between them

Answer 1

solid, liquid, gas
solid -> liquid = melting
solid -> gas = evaporation
liquid -> gas = melting
gas -> liquid = condensing 
gas -> solid = sublimation

Question 2

describe the arrangements and movement of particles in the different states of matter

Answer 2

solid: regular fixed arrangement, vibrate in place, low energy
liquid: random arrangement, particles move around each other, greater energy
gas: random arrangement, particles move around each other, high energy

Question 3

explain why the movement and arrangement of particles change during changes of state

Answer 3

The closeness, arrangement and motion of the particles in a substance change when it changes state, the movement of its particles increases. bonds between particles break when a substance melts or evaporates, or sublimes to form a gas from a solid.