Matter Test review (changes and properties)

Front

What is a physical change in the state of matter?

Back

A physical change in the state of matter refers to a change that affects one or more physical properties of a substance without altering its chemical composition, such as evaporation or melting.

Front

What happens to the mass of a substance during a physical change?

Back

The mass of a substance stays the same during a physical change.

Front

What unit is used to measure mass?

Back

Grams (g) are used to measure mass.

Front

What is malleability?

Back

Malleability is a physical property of a substance that describes its ability to be hammered or pressed into thin sheets without breaking.

Front

How do you calculate density?

Back

Density is calculated by dividing the mass of a substance by its volume (Density = Mass/Volume).

Front

What is the density of a stapler with a mass of 50 g and a volume of 10 cm³?

Back

The density of the stapler is 5 g/cm³.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent, such as salt dissolving in water.

Front

What is the difference between physical and chemical changes?

Back

Physical changes affect the form of a substance but not its chemical composition, while chemical changes result in the formation of new substances.

Front

What is an example of a physical change?

Back

An example of a physical change is the melting of ice into water.

Front

What does it mean if a substance is conductive?

Back

If a substance is conductive, it means it can conduct electricity or heat.