Temperature Sensor
Lesson 4 - Phase Changes
2
3
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Melting
Evaporation
Freezing
State Before
State After
StoryMode
TEMPERATURE
PHASE CHANGE
4
What happened to the water in this scene?
TEMPERATURE
PHASE CHANGE
5
In StoryMode, energy was transferred from the water when liquid water changed to solid ice.
This caused particles to decrease in speed as shown.
TEMPERATURE
FREEZING
6
Can you think of a real-world example of freezing?
TEMPERATURE
FREEZING
7
What happened to the water in this scene?
TEMPERATURE
PHASE CHANGE
8
In StoryMode, energy was transferred to the water when solid ice changed to liquid water.
This caused particles to increase in speed as shown.
Melting and Freezing are opposite processes.
TEMPERATURE
MELTING
9
Can you think of a real-world example of melting?
TEMPERATURE
MELTING
10
What happened to the water in this scene?
TEMPERATURE
MELTING
11
In StoryMode, energy was transferred to the water when liquid water changed to gaseous steam.
This caused particles to increase in speed as shown.
TEMPERATURE
EVAPORATION
12
Can you think of a real-world example of evaporation?
TEMPERATURE
EVAPORATION
13
State Before
State After
This process does not occur in StoryMode so let’s test your understanding!
This process is the opposite of evaporation.
Fill in the blanks on the next slide:
TEMPERATURE
CONDENSATION
14
During condensation of water, energy is transferred ______ the water when ______ changes to ______.
�This causes particles to ______ in speed.
TEMPERATURE
CONDENSATION
15
Can you think of a real-world example of condensation?
TEMPERATURE
CONDENSATION
16
What role did temperature play when you were transferring energy to/from water with the temperature sensor?
TEMPERATURE
EXTENSION
17
What are ways to transfer energy to and from a system?
TEMPERATURE
EXTENSION
18
Why is it just water vapor that condenses to become precipitation?
TEMPERATURE
RECALL