Changes in Matter

What are the three states of matter?

• Hard, Soft, Liquid

• Solid, Liquid, Gas

• Gas, Water Vapor, Air

What are the three states of water?

• Ice, liquid water, water vapor

• snow, ice, slush

• freezing, condensation, evaporation

What is an example of water in its gas state?

• a snowman

• glass of water

• steam coming from a pot of boiling water

What is an example of water in its liquid state?

• water coming out of the water fountain

• ice cubes

• mist over the top of mountains

What is an example of water in its solid state?

• a lake in the summer

• icicles

• Water vapor over a pot of hot water

What is a property of water in its solid state?

• Ice takes the shape of its container.

• Ice has a definite size, but not a definite shape.

• Ice has a definite size and shape.

What is a property of water in its gas state?

• Water vapor spreads out to fill the container it is in.

• Water vapor has a definite size and shape.

• Water vapor has very cold temperatures.

What is a property of water in its liquid state?

• Liquid water has a definite size and shape.

• Liquid water takes the shape of the container it fills.

• Liquid water does not have a definite size or shape.

Observe the diagram. Which arrow represents the change of state of melting?

• 1

• 2

• 3

• 4

Observe the diagram. Which arrow represents the change of state of freezing?

• 1

• 2

• 3

• 4