Changes in Matter Vocabulary

It can be a change in size, shape, mass, volume, color, texture, etc. Physical Change A change that happens to a piece of matter that doesn’t change what the matter is. It can be a change in size, shape, mass, volume, color, texture, etc.

Iron into Rust Fizzing Alka Seltzer Burning Wood Bleached Fabric Chemical Change A change that happens to a piece of matter that changes it into a completely different piece of matter--something totally new. Iron into Rust Fizzing Alka Seltzer Burning Wood Bleached Fabric

chemical property an attribute, or characteristic that can only be observed and measured during a reaction that alters, or changes, what the piece of matter is (a chemical change)

Combustion The process of burning

pH Indicators: litmus paper, cabbage juice, grape juice. A substance or item that shows (indicates) that an event has happened or that a property exists. Indicators of Chemical Change: temperature change, bubbles (gas formation), formation of a new solid. pH Indicators: litmus paper, cabbage juice, grape juice.

Acid A compound that has a sour taste. It has a pH that measures less than 7.

Base A compound that has a bitter taste. They are often slippery to the touch. A base has a pH that measures more than 7.

A substance that is used during a chemical reaction. Reactant A substance that is used during a chemical reaction.

A substance that is made during a chemical reaction. Product A substance that is made during a chemical reaction.