physical and chemical changes(Mayank)

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Physical and Chemical Changes:

How to tell the difference Physical and Chemical Changes

Physical Change:

Physical Change Substance may seem different, but the way the atoms link up is the same.

It’s a physical change if:

It’s a physical change if It changes shape or size It dissolves.

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It changes phase (freezes, boils, evaporates, condenses) It’s a physical change if...

Chemical Change:

Changes the way the molecules link up Makes new substances Chemical Change

It’s a chemical change if….:

It’s a chemical change if…. It burns Temperature changes without heating/cooling

It’s a chemical change if...:

It’s a chemical change if... It bubbles (makes a gas)

It’s a chemical change if...:

It’s a chemical change if... It changes color It forms a precipitate

What kind of change is it if someone...:

What kind of change is it if someone... Tears up paper? Physical change Mixes salt and water? Physical change

What kind of change is it if someone...:

What kind of change is it if someone... Burns paper? Chemical change Evaporates salt water? Physical change

What kind of change is it if someone...:

What kind of change is it if someone... Mixes vinegar and baking soda? Chemical change

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