Unit 3 (Physical/Chemical Property & Change) Vocabulary

Front

Acidity/Acid

Back

pH below 7, produces hydrogen ions

Front

Basicity/Base

Back

pH above 7, produces hydroxide ions

Front

Boiling Point

Back

Temperature at which a substance changes from the liquid phase to the gas phase

Tags

NGSS.MS-PS1-4

Front

Chemical Change

Back

Change of one substance to a new substance; it cannot be reversed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Chemical Property

Back

Characteristic of a substance that indicates whether it can undergo a chemical change includes acidity, basicity, combustibility, and reactivity

Front

Color

Back

A physical property of matter resulting from light being reflected, or absorbed

Tags

NGSS.MS-PS4-2

Front

Combustibility

Back

Ability of a substance to catch fire and burn easily

Front

Density

Back

Mass per unit of volume of a material

Front

Endothermic Reaction

Back

Chemical reaction which takes in heat energy; more energy is required to break the bonds in reactants than released in products

Tags

NGSS.HS-PS1-4

Front

Exothermic Reaction

Back

Chemical reaction where heat energy is given off; less energy is required to break the bonds in reactants than is released in products

Tags

NGSS.MS-PS1-4