They speed up and moves faster and faster.
The Sun heats up the Earth At least, mostly It heats up the molecules in the air, which also explains why it's colder the higher you are- there are less air molecules for the Sun to heat up
it heats up
It heats up.
gas heats up and then the molecules spread away from each other, NOT liquid!
The surface of the moon heats up.
When a noble gas is heated, its molecules move faster (this is the same as saying that the gas heats up).
heat because as it heats up the molecules they separate and start to move
What do you think happens when some air heats up and other air is cool?
The Sun heats up the Earth At least, mostly It heats up the molecules in the air, which also explains why it's colder the higher you are- there are less air molecules for the Sun to heat up
"It" heats up,unless you were talking about that.
nothing
it heats up
It heats up because the molecules are moving at a faster rate.
it vibrates the water molecules in the food and heats it up
It heats up
it heats up
Normally, it heats up.