Foundations in Chem/Physics Midterm 2025

Chemistry is:

• The study of matter and the changes it undergoes

• Anything with mass and volume

• The amount of matter in an object

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Matter is:

• The study of matter and the changes it undergoes

• Anything with mass and volume

• The amount of matter in an object

Tags

NGSS.MS-PS1-5

Mass is:

• Anything with mass and volume

• The amount of matter in an object

• The amount of space an object takes up

Volume is:

• Anything with mass and volume

• The amount of matter in an object

• The amount of space an object takes up

Density is:

• The amount of mass within a certain volume

• The amount of matter in an object

• The amount of space an object takes up

What is a chemical change?

• A chemical reaction that changes the identity of a substance

• A chemical reaction that does not change the substance at all

• A reversible change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a physical change?

• A change that is irreversible and creates a new substance

• A change that only reduces the size of a substance

• A change that does NOT change the identity of a substance

Paper burning is a __________________ change. 

• physical
• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Melting wax, evaporating gasoline, and freezing water are all examples of

• chemical changes.
• physical changes.
• energy consumption.

Tags

NGSS.MS-PS1-4

Which of these BEST describes a physical change?

• fireworks explode
• a log in the campfire turns into ashes
• rust forms on your bicycle
• the amount of water in a pan decreases