A WALK UP THE PHASE CHANGE GRAPH *Using a color key, label the three states/phases of matter and the two phase changes. *Also label “solid”, “liquid”, and “gas” in the appropriate locations. 200
150
Temperature (C)
Color Key:
Solid
Liquid
Gas
Melting
Evaporation
100
50
0
-50
-100
0
100
200
300
400
500
600
700
800
Time
1. What two states of matter are found during “melting” _____________ & _____________ 2. According to graph above, what is the melting temperature of water? __________ 3. What happens to the water temperature during “melting”? _____________________________ 4. According to graph above, are we adding heat or removing heat? __________ 5. What clue helps you see the answer to #3? _____________________________ 6. Based on your answer to #3, is the graph above endothermic or exothermic? _______________ 7. During the “liquid” phase, the water is heating, thus the temperature is ___________________. 8. What two states of matter are found during evaporation? _____________ & _____________ 9. What happens to the water temperature during evaporation? ___________________________ 10. According to graph above, what is the evaporation temperature of water? __________ A STROLL DOWN THE PHASE CHANGE GRAPH *Using a color key, label the three states/phases of matter and the two phase changes. *Also label “solid”, “liquid”, and “gas” in the appropriate locations. 200
150
Color Key:
Temperature (C)
Solid
Liquid
Gas
Freezing
Condensation
100
0
50
-50 -100
0
100
200
300
400
500
600
700
800
Time
1. What two states of matter are found during freezing _____________ & _____________ 2. According to graph above, what is the freezing temperature of water? __________ 3. What happens to the water temperature during freezing? ______________________________ 4. According to graph above, are we adding heat or removing heat? __________ 5. What clue helps you see the answer to #3? _____________________________ 6. Based on your answer to #3, is the graph above endothermic or exothermic? _______________ 7. During the “liquid” phase, the water is cooling, thus the temperature is ____________________. 8. What two states of matter are found during condensation? _____________ & _____________ 9. What happens to the water temperature during condensation? __________________________ 10. According to graph above, what is the condensation temperature of water? __________