Thursday, October 18th AGENDA: 1 – Bell Ringer & HW Check 2 – Heating Curve Lab 3 – Heating Curve Lab Analysis Announcements 2.5 pts of extra credit for coming for tutoring after school (up to 5 times / week) Today’s Goal: Students will be able to construct a heating curve. Homework 1. Finish Heating Curve Lab Analysis – p. 12 - 13 2. Study for Quiz # 4 (cumulative)
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Thursday, October 18th AGENDA: 1 – Bell Ringer & HW Check 2 – Heating Curve Lab 3 – Heating Curve Lab Analysis Announcements 2.5 pts of extra credit for.
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Thursday, October 18th
AGENDA:1 – Bell Ringer & HW
Check2 – Heating Curve Lab3 – Heating Curve Lab
Analysis Announcements2.5 pts of extra credit for
coming for tutoring after school (up to 5 times / week)
Today’s Goal:
Students will be able to construct a heating curve.Homework1. Finish Heating Curve Lab
Analysis – p. 12 - 132. Study for Quiz # 4 (cumulative)
Thursday, October 18th
Objective: Students will be able to construct a heating curve.
Bell Ringer (p. 15):1. Summarize today the procedure for
today’s lab2. What do you expect to see when you
graph your data?
Have your homework assignment (p. 8-11) out on your desk for a stamp.You will not be able to do the lab without it.
Do not touch anything until instructed!!
4 MINUTES REMAINING…
Thursday, October 18th
Objective: Students will be able to construct a heating curve.
Bell Ringer (p. 15):1. Summarize today the procedure for
today’s lab2. What do you expect to see when you
graph your data?
Have your homework assignment (p. 8-11) out on your desk for a stamp.You will not be able to do the lab without it.
Do not touch anything until instructed!!
3 MINUTES REMAINING…
Thursday, October 18th
Objective: Students will be able to construct a heating curve.
Bell Ringer (p. 15):1. Summarize today the procedure for
today’s lab2. What do you expect to see when you
graph your data?
Have your homework assignment (p. 8-11) out on your desk for a stamp.You will not be able to do the lab without it.
Do not touch anything until instructed!!
2 MINUTES REMAINING…
Thursday, October 18th
Objective: Students will be able to construct a heating curve.
Bell Ringer (p. 15):1. Summarize today the procedure for
today’s lab2. What do you expect to see when you
graph your data?
Have your homework assignment (p. 8-11) out on your desk for a stamp.You will not be able to do the lab without it.
Do not touch anything until instructed!!
1minute Remaining…
Thursday, October 18th
Objective: Students will be able to construct a heating curve.
Bell Ringer (p. 15):1. Summarize today the procedure for
today’s lab2. What do you expect to see when you
graph your data?
Have your homework assignment (p. 8-11) out on your desk for a stamp.You will not be able to do the lab without it.
Do not touch anything until instructed!!
30 Seconds Remaining…
BELL-RINGER TIME IS
UP!
Thursday, October 18th
AGENDA:1 – Bell Ringer & HW
Check2 – Heating Curve Lab3 – Heating Curve Lab
Analysis Announcements2.5 pts of extra credit for
coming for tutoring after school (up to 5 times / week)
Today’s Goal:
Students will be able to construct a heating curve.Homework1. Finish Heating Curve Lab
Analysis – p. 12 - 132. Study for Quiz # 4 (cumulative)
Thursday, October 18th
Objective: Students will be able to construct a heating curve.
Bell Ringer (p. 15):1. Summarize today the procedure for
today’s lab2. What do you expect to see when you
graph your data?
Have your homework assignment (p. 8-11) out on your desk for a stamp.You will not be able to do the lab without it.
Do not touch anything until instructed!!
Shout Outs
Period 1 –Shawntia
Period 2 –Rashad
Period 3 –Bria, Mariah, D’Angela, Aquinas, James, etc.
Homework
Today1. Finish Heating Curve Lab Analysis – p. 12 - 132. Study for Quiz # 4 (cumulative)
C – Conversation – No talking unless directedH – Help – RAISE HAND for questionsA – Activity – Heating curve labM – Materials and Movement – Pen/Pencil, Packet. DO
NOT TOUCH ANYTHINGP – Participation – Work on Heating Lab AnalysisS – Success – Finish Lab
Heating Curve Lab (p. 12-13)Pre-lab Questions:
1. What are the three phases of matter? What are the particle arrangements in each? 2. During a Phase change do you expect to see any change in temperature?
Heating Curve Lab (p. 12)
Do not touch anything until instructed!!
Heating Curve Lab (p. 12-13)
We are using the Celsius scale (the
smaller one)
Heating Curve Lab (p. 12)Procedure:
1. Plug in the hot plate and allow it to heat up. 2. While the hot plate is warming up, fill your 250-mL beaker with ice. 3. Use the thermometer to measure the temperature of the ice. Record the temperature for 0 minutes
in Table 1. 4. Place the beaker of ice on the hot plate to begin heating. After 1 minute, observe the temperature of
the ice. Record the temperature in Table 1. Do not let the thermometer touch the sides or bottom of the beaker.
5. Continue measuring the temperature every 30 seconds. Stir the ice or water just before taking the temperature each time
6. Stop recording data when the temperature of the boiling water has not changes for 4 minutes.
Heating Curve Lab (p. 12-13)Time (min) Temp. (oC) Time (min) Temp. (oC) Time (min) Temp. (oC)
0 9 5.3 30 11 81
0.30 9 6 35 11.3 85
1 9 6.3 40 12 87
1.3 9 7 45 12.3 90
2 9 7.3 50 13 92
2.3 11 8 55 13.3 93
3 13 8.3 60 14 93
3.3 17 9 66
4 18 9.3 70
4.3 20 10 75
5 25 10.3 78
Heating Curve Lab (p. 13)
0 2 4 6 8 10 12 14 160
10
20
30
40
50
60
70
80
90
100
Heating Curve for Water
Time (minutes)
Tem
pera
ture
(deg
rres
Cel
sius)
You should now graph your points
Heating Curve Lab (p. 13)Post-Lab Questions: 1. What does the line look like on your graph when temperature is changing? 2. What does the line look like when temperature is not changing? 3.What does the first flat region represent? What does the second flat region represent?
4. At times (flat regions of your graph), why does the temperature of a substance remain constant, even though energy is being added?
5. Label each segment of your graph, write which phase of matter is for each segment and for phase changes say what type of phase change is occurring (freezing, boiling, etc.)
6. During which phase were the water molecules the most free to move around? How could you tell? Can you relate this to kinetic energy?
Cornell Notes: Heating Curve
Time
Phase Changes are flat because they
occur at a constant temperature
During a phase change you have a
mix of the two phases.
Kinetic Energy increases when Temperature
increases
Potential Energy increases during phase
changes
Classwork p. 8
Classwork p. 8
Solid
Liquid
Gas
Classwork p. 8
Solid
Liquid
Gas
Melting
Boiling
Classwork p. 8
Solid
Liquid
Gas
Melting
BoilingPhase
Changes are flat
because…
Classwork p. 8
Phase changes are flat because there is no temperature change.
Kinetic energy (the energy of movement) increases with temperature.
Potential energy (energy from particle configuration) increases during melting and boiling.
Classwork p. 8
Classwork p. 8
I
Classwork p. 8
IIII
Classwork p. 8
IIII
V
Classwork p. 8
IIII
V
II
Classwork p. 8
IIII
V
II
IV
Classwork p. 8
IIII
V
II
IV
55 C
Classwork p. 8
IIII
V
II
IV5 C
55 C
Classwork p. 9
Classwork p. 9I, III, V
Classwork p. 9I, III, V
II, IV
V
I
V
Homework p. 9
Homework p. 92. Identify by letter (A-E) in which section the following are found: a. _______ Freezing (if cooling) b. _______ Particles farthest apart c. _______ Boiling d. _______ Particle motion is most restricted e. _______ Heat of fusion f. _______ All areas where energy change is potential only g. _______ Heat of vaporization h. _______ All areas where particles move past each other i. _______ Least kinetic energy j. _______ All areas where kinetic energy is changing k _______ most potential energy l. _______ All areas where phase changes occur m. _______ All areas in which the heat is making the particles move faster n. _______ All areas in which the heat is breaking the attractions or bonds between particles o. _______ All areas in which the particles are not changing their speed Now try an unlabeled heating curve for water without pictures and see how well you do!
Cornell Notes: Heating Curve
Time
Phase Changes are flat because they
occur at a constant temperature
During a phase change you have a
mix of the two phases.
Kinetic Energy increases when Temperature
increases
Potential Energy increases during phase
changes
Exit Ticket (p. 16)
Describe each of the 6 phase transitions in terms of:1. What Phase -> What
Phase2. Endo or Exothermic?3. Increase or decrease in