review day! objective: swbat dominate the matter unit test tomorrow! catalyst: give an example...
TRANSCRIPT
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Review Day!
Objective: SWBAT dominate the matter unit test tomorrow!
Catalyst: Give an example of a physical and a chemical
change. What happens to particles during a phase
change? Write a hypothesis to the following scenario:
If I eat a salad for lunch for 3 weeks, then I will lose 5 pounds.
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Agenda
Catalyst Quiz-Quiz Trade Showdown Graphing Whiteboards Work on Review Sheet
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Quiz-Quiz-Trade
You have 15 minutes to move around.
If you do not have a partner, have your hand up ready to slap hands with a potential partner.
If your partner misses the question, you must COACH them to the correct answer.
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DENSITY SHOWDOWN!
There are two students that will come up and do these problems.
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The mass of a piece of pizza is 350 grams and the volume is volume is 70 cm3.
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A student determines that a piece of an unknown material has a mass of 5.854 g and a volume of 7.57 cm3.
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Iron has a known density of 7.87 g/cm3. What would be the mass of a 2.5 cm3 piece of iron?
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A 2cm*3cm*7cm block of aluminum is found in a room. The density of aluminum is 2.7 g/cm3. What is the mass?
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A 3 gram piece of aluminum (D=2.7 g/cm3) has what volume?
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A 4 kg piece of metal has a density of 4 g/cm3--- what is the volume?
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How to Graph Density
1. Label axes (x = volume, y = mass)
2. Title graph (y-axis vs. x-axis)3. Determine scales4. Plot each point5. Draw trend line (line of best fit)
For density graphs, the slope equals the density!
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GRAPHING
Volume (mL) Mass (g)0.0 0.02.0 4.04.0 9.06.0 11.08.0 16.0
10.0 20.0
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Remember
Graph, then find the slope of your LINE OF BEST FIT!
Look for the crosshairs and find two points for slope.
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GRAPHING-You Try!
Volume (mL) Mass (g)0.0 0.05.0 4.0
10.0 9.015.0 11.020.0 16.025.0 20.0
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GRAPHING-You Try!
Volume (mL) Mass (g)0.0 0.05.0 4.0
10.0 7.515.0 13.020.0 16.025.0 19.5
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Whiteboard Practice!
Describe how you take volume of a rock.
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Whiteboard Practice
Describe how you would separate a mixture of sand, water, and oil.
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Whiteboard Practice!
How would you separate salt from water?
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Exit Question
What is the definition of matter? Describe the Kinetic Molecular Theory. What are you going to do to dominate
this test tomorrow?