does particle movement change with visibly with heat? how? people keep telling me but i dont understand.HELP!!

Answer 1

Its the heat (temperature) that changes with the particle movement.
The faster the particles move, the more particle collisions there are, which means there is more energy released (in the form of heat).

or something along those lines

Answer 2

Lets say you have 2 pots and 6 pig-pong balls and 2 thermometer. Fill both pots with water and drop 3 balls in each pot. put one pot on the stove with one thermometer in it and the other pot (also with a thermometer in it) on the kitchen table. Record the temperature of both pots. Wait until the balls in the pots stop moving around. Now turn the heat on the oven on. After a few minutes you should see that the balls in the pot on the oven start moving and as the temperature of the water rises, they move faster and faster, while the ones in the other pot should stay immobile or move very slowly.

Now do this second experiment:
Grab 2 glasses (preferable same size and shape) and fill them with water. Add a couple teaspoons of coffee to each cup. Levey one cup at the room temperature and heat up the other one lets say for 30 seconds in a microwave. Now look at the water inside the cups . Which one has more coffee dissolved in it?

Heat is a type of energy, When you warm something up, you add to its internal energy which makes its molecules move faster (Brownian Movement: molecules are in constant movement as long as the temperature is above absolute zero: -273ºC).