Physical vs Chemical Properties and Changes

Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid. What physical property of the material is Serena most likely observing?

• solubility

• conductivity

• magnetism

• density

What happens when a substance undergoes a physical change?

• Some physical properties change, but the substance keeps its identity.

• No physical properties change, and the substance keeps its identity.

• Some physical properties change, and the substance changes its identity.

• No physical properties change, but the substance changes its identity.

Which can occur in a physical change?

• The mass can increase.

• The particles can arrange in different ways.

• The mass can decrease.

• The atoms can bond to different atoms.

When liquid gold becomes a solid, its particles get closer together. Which best describes what happened to the gold?

• the conservation of magnetism

• the change in solubility in a physical change

• the change in melting point in a physical change

• the rearrangement of particles in a physical change

Tags

NGSS.MS-PS1-4

If you describe a substance as being corrosive, you have given a __________ property of that substance

• Chemical

• Large

• Physical

• Thermal

Tags

NGSS.MS-PS1-2

Which characteristic would best help in identifying a substance's chemical property in a kitchen setting?

• Ability to dissolve sugar in water.

• Change in temperature when baking soda is added to vinegar.

• Ability to react with lemon juice.

• Weight of the salt.

Answer explanation

The best characteristic to identify a substance's chemical property in a kitchen setting is its ability to react with lemon juice.

Tags

NGSS.MS-PS1-2

a characteristic of a substance that describes how it combines with other substances to form new ones

• Chemical property

• Atomic number

• Atomic mass

Iron + oxygen = rust is an example of a ___________.

• physical property/change

• chemical property/change

• mass

• volume

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the outcome of observing a chemical property?

• Nothing

• A new substance is formed with different properties

• NaCl

• A rise in thermal conductivity

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The ability for a nail to rust is a 

• bummer

• physical property

• chemical property

• reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5