8th grade unit #2 Density and physical properties of matter

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in g/cm³ or g/mL.

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is the density of an object with a mass of 42 g and a volume of 6 cm³?

Back

7 g/cm³.

Front

What happens to the density of an object if its mass increases while its volume remains the same?

Back

The density increases.

Front

What is the density of an irregularly shaped object that displaces 3 mL of water and has a mass of 27 g?

Back

9 g/mL.

Front

What state of matter has tightly packed molecules?

Back

Solid.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent.

Front

What is a chemical change?

Back

A chemical change creates a new substance.

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance, while chemical properties involve a change in the substance.

Front

What is an example of a physical property?

Back

Color, mass, volume, and density are examples of physical properties.