6° 4th bim science exam

When vapor touches a very cold surface ___ forms.

• condensation

• freezing

After the __ of salt water, the white dust that is left behid is salt.

• condensation

• evaporation

Matter can change its __ at certain temperatures.

• state

• point

The __ point of a liquid is the same as the melting point of its solid state.

• freezing

• boiling

__ is a state of matter.

• Electricity

• Plasma

Gases do not have a definete __, so they can be squeezzed to fit a small container.

• volume

• state

A ________________ has a definite shape and volume, or amount of space it takes up.

• solid

• liquid

• gas

A _______________ has a definite volume but no definite shape. It takes the shape of its container.

• solid

• liquid

• gas

A ______________ does not have a definite volume or shape. It will fill all the space and take the shape of that container.

• solid

• liquid

• gas

The________________ is when a liquid turns into a solid.

• freezing point

• boiling point

• melting point