Changes Of State

Question 1

What’s the change from solid to liquid?

Answer 1

Melting

Question 2

What’s the change from liquid to solid?

Answer 2

Freezing

Question 3

What’s the change from solid to gas?

Answer 3

Sublimation

Question 4

What’s the change from gas to liquid?

Answer 4

Condensation

Question 5

What’s the change from liquid to gas?

Answer 5

Evaporation

Question 6

What’s a boiling point?

Answer 6

When a liquid turns to gas throughout the liquid at a given temperature (water is 100c)

Question 7

What’s a melting point

Answer 7

When a solid turns to a liquid at a given temperature.

Question 8

What’s evaporation

Answer 8

Liquid to gas at the top of the liquid (eg. Steam rising off water)

Question 9

What’s a physical change?

Answer 9

When atoms form in a new way to give is a mixture but do not create a new substance. They can usually be easily reversed.

Question 10

What’s a chemical change?

Answer 10

A chemical change is when atoms arrange in a different way to give us a new substance called a compound. They can usually not be reversed.

Question 11

What’s a compound?

Answer 11

2 or more elements chemically combined.