Energy Changes

States Of Matter

Solids- Hard, Rigid, The particles stick together/don’t move/ shape stays defined.

Liquid- The liquid particles are spaced apart. There is a lot of room/ moves downward/ Shape changes/ has a constant volume.

Gas- No Attraction between particles, moves in every Direction/ Shape changes.

Bohr model- The model is the name of the element and then the atomic number in an order 2,8, 8-18

Matter States [Change(s)]

Rusting- A reddish, yellowish, or brown flaky layering of iron oxide that is formed on iron from Oxidation Especially in the presence of limestone

Toxic- Very harmful or unpleasant in a pervasive or insidious way/Poisonous

Flammable- Easily set on fire

Texture- The feel or appearance, consisting of a surface or substance that gives a rough or uneven feeling

Stability- The state of being stable

Condensation- Water that collects as droplets on a cold surface when humidity is in contact with it.

The conversion of a vapor or gas to a liquid

Changes in matter

Fabric + Fire = Ash Newly formed matter

Instructions: In each of the examples below find out if a new thing is formed or if it is not formed.

1: Condensation of water vapor

The new thing is not formed

2: burning of Magnesium (Mg)

A new thing is formed

3: Grinding a rock

The new thing is not formed

4: Corrosion of Iron Nail

A new thing is formed

5: Melting of ice cream

The new thing is not formed

Chemical change

Solid Fire Gas/Liquid

-Different compositions

-change is permanent

- Change can not be reversed

Chemical Change- Something that New

Physical Change- Opposite of Chemical

Ice Cream- Fire- Ice Cream

There is another way for a chemical change it is called a “ Chemical reaction”

Ways to tell if the chemical change happened