Page 23 - Science Course 1 (Book 2)

Mo7-L2a: What are Physical Properties of Matter?

The temperature at which a substance changes Electrical conductivity is the ability of matter to
from a solid to a liquid is its melting point. conduct, or carry along, an electric current.

The temperature at which a substance changes
from a liquid to a gas is its boiling point.

Melting point and boiling point are size-independent
properties—properties that are the same for both
small samples and large samples.

Thermal conductivity is the ability of a material to
conduct thermal energy.
Sublimation Deposition Condensing

Evaporating

Melting

Freezing

The boiling point of water is 100°C
at sea level. The boiling point
does not change for different
volumes of water.
Solubility is the ability of one substance to dissolve
in another.

Mass

Density is the mass per Solute += Solvent Solution
unit volume of a substance.
Density Volume

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