States of Matter

States of Matter

What do we know about water - 

• hot water makes steam
• cold water can go to ice

What are learning about water - 

• Using marbles and a tote tray we modeled how the water molecules move in a solid, liquid and a gas.

This is how the marbles (molecules) moved:

Here is what we noticed...

Solid	Liquid	Gas
Cold Molecules move slowly Ice Not much energy	Warm Molecules move medium (not fast and not slow) Water Medium energy	Hot Molecules move fast Steam (vapour) Lots of energy

• Kerri asked us “is there a different way you can model how atoms move in a solid,
  liquid and a gas using your body?”
• We decided to go outside and use the netball court.
• For a solid we all stood close together and jiggled and wiggled.
• For a liquid we walked around in one third.
• For a solid we ran around in two thirds.

Here is what we noticed...

Solid	Liquid	Gas
We were jiggling and wiggling We were cold There were no collisions/crashes We didn’t take up much much space Not much energy was needed	We were walking slowly We started to get warm There were not many collisions/crashes We needed about1/3 of the court A medium amount of energy	We were running around, lots of moving We got hot There were lots of collisions/crashes We needed lots of space, about 2/3’s of the court We needed lots of energy to keep running fast. We got excited

Sometimes this is a bit easier when stuff (like gold) is made up of stuff (gold atoms)

• Gold can be a solid, a liquid or a gas (really, really hot!). The atoms of gold jiggle and wiggle as a solid, move slowly as a liquid and move quickly as a gas (just like water.)

• question: do all solids, liquids and gases act the same?