Physical and Chemical Changes

Which of the following is the proper definition of chemistry?

• the study of the composition, structure, and properties of matter and the changes it undergoes

• the study of life

• the study of scientific processes

• the study of the human body

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

the study of most carbon-containing compounds

• inorganic chemistry

• organic chemsitry

• analytical chemistry

• biochemistry

Tags

NGSS.HS-LS1-6

Any substance that has a definite composition

• element

• compound

• chemical

• thing

Anything that has mass and takes up space

• compound

• element

• matter

• substance

Tags

NGSS.MS-PS1-5

A substance that has particles that are fluid, has an indefinite shape, but a definite volume

• Solid

• Liquid

• Gas

• Liquid and gas

Tags

NGSS.MS-PS1-4

A substance that has indefinite shape and indefinite volume

• solid

• liquid

• gas

• solid and liquid

Tags

NGSS.MS-PS1-4

Rusting metal is an example of a ____ change.

• chemical

• phase

• state

• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Josh decided to mix some vinegar with baking soda. He knew that a reaction occurred because he made careful observations. He noted that the mixture started to foam up and bubble, and it was white in color. How did Josh know that a chemical reaction occurred?

He was sure a reaction occurred because of

• the color of the mixture

• the smell of the vinegar

• the volume of the mixture

• the formation of a gas

Tags

NGSS.MS-PS1-2

Use the basic properties of solids, liquids, and gases to identify the correct state of matter in the image.

• (A) gas, (B) liquid, (C) solid

• (A) solid, (B) liquid, (C) gas

• (A) liquid, (B) solid, (C) gas

• (A) solid, (B) gas, (C) liquid

What type of substance has low compressibility and high density?

• solid

• liquid

• gas

• gas and liquid