Mia and Devon are having a summer party. They need to make two sizes of ice. The large blocks of ice will be put in a cooler to keep cans of soda cold. The small ice cubes will keep the sodas in the glasses cold. They wondered how the temperature at which water freezes is affected by the size. Which statement below is true?

A. Small ice cubes freeze at a lower temperature than large blocks of ice.

B. Small ice cubes freeze at a higher temperature than large blocks of ice.

C. Small ice cubes and large blocks of ice freeze at the same temperature.

ReviewReviewDensity AnomalyIce floats DMV

Heat CapacityHeat Capacity How much heat a

substance can “hold” Water has a high heat

capacity Water can “hold” a lot of

heat

Heat CapacityHeat Capacity It also takes a lot of energy to heat water up

Or to cool it down

Change of StateChange of State Water exists in the liquid

state in a very wide range of temperatures

Form 0oC to 100oC In liquid form all over the

world

Change of StateChange of State Water has extreme

boiling/freezing points Boiling point: 100o C, 212o FFreezing point:0o C, 32o F

Sensible HeatSensible Heat Heat is applied, the

temp. increases but The state of matter

stays the same “angled or curved” parts

of the graph

Sensible Heat

Latent HeatLatent Heat Heat applied, the temp.

stays the same but The state of matter

changes “flat spots” on the graph

Latent Heat

Water’s 4 Special Water’s 4 Special Properties:Properties: 1. High Surface Tension

2. The Density Anomaly

3. High Heat Capacity

4. High Boiling Point/High Freezing Point