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

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\ 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

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