week #6 quarter 2 (11/18-11/22) (calendar site) (calendar site) monday, 1/18 have out: “matter...
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Week #6 Quarter 2 (11/18-11/22) (calendar site)Monday, 1/18
Have out: “Matter outline
note”
Activities/Assignments:1.Grade Elements Quizzes (5th hour
only!)2.Discuss Grades/Work on
Notebooks3.Matter Notes (6th hour only!)
Homework:
Chemistry unit test, stamp sheet and
notebooks due 11/ 27
I.S. Learning Goal:•I can describe predict properties of elements and compounds using trends of the periodic table (e.g., metals, non-metals, bonding – ionic/covalent).
Daily Question: What is matter?
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DATE PAGE # PAGE TITLE DATE PAGE # PAGE TITLE
10/28/13 17 Bonding Basics Review
10/28/13 18 Bonding Basics Review
10/29 19 Bonding Basics Practice Worksheet
10/29 20 Review Atoms Worksheet Packet
11/6 or 7 21 Inquiry Quiz 11/6 & 7 22 Candy Compound Lab
11/6 or 7 23 Discovering the Definition of Matter-Solid, Liquid, Gas
11/6 & 7 24 Matter Notes
Update Table of Contents
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Chemical Change
• a change in which a substance becomes another substance having different properties
• a change that is not reversible using ordinary physical means
• Changes that usually cause heat, sound, light, odor, fizzing/foaming, color changes
You usually need more than one of the above characteristics to be considered a chemical
change!
• Examplescombining sulfuric acid and sugar
burning a piece of woodsoured milk
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Chemical or Physical Change?
1. Bending a Paper Clip
2. Baking a cake
3. The sublimation of carbon dioxide
4. Crushing an aluminum can
5. Vinegar and baking soda combining to create salt and water
Physical Change
Chemical Change
Chemical Change
Physical Change
Physical Change
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Mass vs. WeightMass
• a measure of how much matter an object is made of
• does not change, regardless of where something or
someone is
Weight
• the force of gravity on an object
• equal to the mass of the body times the local acceleration of gravity
http://www.exploratorium.edu/ronh/weight/index.html
Why do you think the person ’s weight is less on
the moon?Mass = 59 kg Mass = 59 kg
Weight = 579 N Weight = 96 N
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5 Physical States of Matter
•Bose-Einstein
•Solid •Liquid•Gas
•Plasma
(Newest State)
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Bose-Einstein Condensate
• Exist at extremely cold temperatures (around absolute zero or -460 oF)
• Particles are super unexcited
• Particles lock or “clump” together so firmly that they move as a single unit
• Definite shape and volume (?)
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Solid
• Particles are tightly compact
• Particles vibrate without the ability to move freely
• Definite shape and volume
• Solid Animation
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Liquid
• Particles are tightly compact, but able to move around close to each other
• No definite shape, but definite volume
• Liquid Animation
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Gas
• Particles can easily spread out or move close together
• Particle move freely and with a lot of energy
• No definite shape or volume
• Gas Simulation
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Plasma
• Exist at extremely high temperatures (several million degrees Celsius)
• Particles are broken apart• Particles move freely and
with extremely high energy
• This form is not too common on Earth, however it is the most common form of matter in the universe
• No definite shape or volume (?)
• Examples: Florescent and neon lights, lightning, aurora borealis
-
-
-
Why do you think this is the most common
form/state of matter in the universe?
++
+
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Energy and the States of Matter
• The physical states of matter result from the amount of energy the particles composing the matter have. Basically, more energy means more movement for the particles and less energy means less movement.
• Energy/Temperature and Matter Simulations– PhET– BEC: Temperature and Absolute Zero
If you were to compare an ice cube and the steam created from boiling water, which would you think has more energy?
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States of Matter Continuum
Taken from: http://www.chem4kids.com/files/matter_becondensate.html
What about this continuum could be considered a little misleading?
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Week #6 Quarter 2 (11/18-11/22) (calendar site)Tusday, 11/19
Have out:
Activities/Assignments:1.Complete the Matter and it’s changes concept map2.Physical and Chemical Changes Review Worksheet3.Identifying Ionic & Covalent Bonds Review Worksheet
Homework:
Chemistry unit test, stamp sheet and
notebooks due 11/ 27
I.S. Learning Goal:•I can describe the properties of matter
Daily Question: What is matter?
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DATE PAGE # PAGE TITLE DATE PAGE # PAGE TITLE
11/6 or 7 23 Discovering the Definition of Matter-Solid, Liquid, Gas
11/6 & 7 24 Matter Notes
11/19 25 Matter and its Changes Concept Map
11/19 26 Physical & Chemical Changes Review Worksheets
11/19 27 Identifying Ionic & Covalent Bonds Review Worksheet
Update Table of Contents
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• Copy down the concept map on to blank paper.
• Fill in the blanks using the key words provided.
• Get a stamp when done.
• Discuss answers when done
Atomic Number
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• Follow the directions on the worksheet.
• Fill in the blanks using the key words provided.
• Get a stamp when done.
• Discuss answer when done.
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• Follow the directions on the worksheet.
• Fill in the blanks using your periodic table of elements
• Get a stamp when done.
• If not done at the end of the hour this will be due as homework on Wed/Thurs!!!
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Week #6 Quarter 2 (11/18-11/22) (calendar site)
Wed/Thursday, 11/20 & 21Have out:
“Matter outline note”
Blank paper for Liquid Layering
Lab
Activities/Assignments:1.Matter Notes2.Liquid Layering Lab3.Finish Matter Notes4.Mixtures Notes5.Properties of Matters Notes
Homework:
Chemistry unit test, stamp sheet and notebooks due
11/ 27
I.S. Learning Goal:•I can describe the properties of matter
Daily Question: What is matter?
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DATE PAGE # PAGE TITLE DATE PAGE # PAGE TITLE
11/19 25 Matter and its Changes Concept Map
11/19 26 Physical & Chemical Changes Review Worksheets
11/19 27 Identifying Ionic & Covalent Bonds Review Worksheet
11/20 or 11/21
28 Mixture Notes
11/20 or 11/21
29 Properties of Matter Notes
Update Table of Contents
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Density
• a measure of the amount of matter present in a given volume of a substance
• typically expressed in the following units:– grams per cubic centimeter (g/cm3) for solids– grams per milliliter (g/ml) for liquids
• does not depend on how much of a substance you have (intrinsic property) – in other words, the density of a gold bar would be the same as the density of a gold flake
• can change as temperature and pressure change
Which do you think is more dense? Why?
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Layering Liquids
Using a test-tube and the eyedroppers, try to layer the four different colored liquids so that the colors don’t mix and show distinct layers.
1.Hold the test-tube in your hand at a 45 degree angle.2.Using the eyedropper from one of the colors, slowly place the
liquid into the test-tube.3.Repeat step two using the other three liquids until you get them
layered. Record the order of the colors.
If you don’t get clear separation of the colors, you should empty the contents of the test tube down the drain and start again. These steps may need to be repeated several times until you discover the correctorder of the colors.
*Placing white paper behind the straws will help you see the divisions
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Layering Liquids - Discussion
1. Were you capable of layering the four liquids? If so, what was the correct order from the bottom up?
2. What difficulties did you experience when performing this activity?
3. Why do you think the liquids created layers when putting them in the test tube in the correct order?
4. Because these liquids are miscible, or partially miscible, they did not really create distinct layers. What do you think it means to be miscible?
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Layering Liquids
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Week #6 Quarter 2 (11/18-11/22) (calendar site)Friday, 11/22
Have out: “Matter outline
note”Blank paper for Liquid Layering
Lab
Activities/Assignments:1.Finish Matter Notes2.Mixtures Notes3.Properties of Matters Notes
Homework:
Chemistry unit test,
stamp sheet and
notebooks due 11/ 27
I.S. Learning Goal:•I can describe the properties of matter
Daily Question: What is matter?
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Calculating Density
• Density can be calculated by dividing the mass of an object by its volume
D = m V
Sample ProblemTimothy found a solid metal blockthat has a mass of 100 grams and a volume of 25 cm3. What would be
the density of the block?
D = =
100 grams25 cm3
4 grams cm3
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Practice Problems
1. Find the density of a substance with a mass of 27 g and a volume of 7 cm3.
• 2. A block of maple has a mass of 20 grams and a volume of 26.5 cm3. What is the density of the block?
D = m V
D = m V
D =
=27 g7 cm3
3.86 grams cm3
D =
20 grams26.5 cm3 =
0.75 grams cm3
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The Density Triangle
D V
m
.
D = m V
V = m D
m = D V
.
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States of Matter Diagram
http://www.youtube.com/watch?v=vDZhUkp30tE
Copy diagram down on paper
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Mixture Notes
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SolventPart of the solution that is present in largest amount
and dissolves a solute
What liquid is called the “universal solvent”?
Solvent - Solute - Solution
WATER
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SolutePart of solution present in lesser amount and dissolved by solvent
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SolutionA well mixed mixture containing a solvent and at
least one solute that has the same properties throughout.
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Properties of Matter –
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Physical Property
Characteristic of a pure substance that can be observed WITHOUT changing it into another substance.
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Chemical Property
A characteristic of a pure substance that describes its ability to change into a DIFFERENT substance.
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Mixture
Made of two or more substances- elements, compounds or both- that are together in the same place but are not chemically combined.
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Heterogeneous Mixture
You can see the different parts
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Homogeneous Mixture
So evenly mixed that you can’t see the different parts