This term we have done chemistry and i liked it a lot.
Conduction - Conduction is when heat moves into a cold space
We did an experiment where we would put drawing tacks with Vaseline and heated a metal rod up. the tacks dropped
Convection - Is when heat makes a light material rise up
we did an experiment where we would drop a potassium crystal into a straw and as the purple liquid floated and moved to the other side
Contraction - contraction is where something squeezes itself making it contract
We did en experiment where we heated a ball on a stick and a metal ring on a stick. the heated ball and the water made the ball shrink
Expansion - Expansion is where something grows bigger or becomes bigger, much like the big bang
Same with that other experiment we heated the ball up that made it expand
Heat is where particles moves with a lot of energy this makes heat spread
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