1. Jump Start-physical properties
*If you were asked to describe a piece of fruit to a person who has never seen this type of fruit before, what would you tell the person?
*Be descriptive in your language.
*Please DO NOT tell your classmates which fruit you have chosen to describe, because you will be sharing your response later.
*Use both qualitative and quantitative data (remember this from the beginning of the year?).
*Any volunteers want to read their fruit description to the class? (Please do not tell us what your fruit is before, we want to guess).

2. Warm-up
SHARE YOUR PHYSICAL PROPERTY DESCRIPTION FROM THE HOMEWORK WITH YOUR TABLE PARTNER AND HAVE THEM GUESS WHAT IT IS (IF YOU DON’T HAVE A TABLE PARTNER SHARE WITH ANYONE IN CLASS).

3. Secret Sack PROCEDURE:
Each Lab Group will receive a sealed paper sack containing a mystery object. Do not open the sack! (unless it says you can)
For about 1 minute, make as many observations about the object as you can without opening the sack. You may touch, shake, or listen to the object through the sack. Record your observations. Be gentle!!!!

4. ANALYSIS in your notebook:
Secret Sack Continued DO NOT LOOK IN THE BAGs WE WILL DO IT TOGETHER AT THE END.
ANALYSIS in your notebook:
1. At the end of 1 minute, discuss your findings with your partners.
2. List the object’s properties that you can identify.
3. Make another list of properties that you cannot identify. Then make a conclusion about the objects identity.
4. Share your observations, your list of properties, and your conclusion with the class. Then, open the sack.
5. Did you properly identify the object? If so, how? If not, why? Record your answers.```

5. Bag #1-
Bag #2-
Bag #3-
Bag #4-
Bag #5-
Bag #6-
Bag #7-

6. Write out and answer the following questions in your Science notebook
Warm-up
Write out and answer the following questions in your Science notebook
Which of the following are examples of matter?
A. Dust C. Strand of hair
B. The moon D. All of the above
A graduated cylinder is used to measure
A. Volume C. Mass
B. Weight D. Inertia
The volume of a solid is measured in
A. Liters C. Cubic Centimeters
B. Grams D. All of the above
Mass is measured in A. Liters/Milliliters B. Newtons C. Kilograms/grams

7. Warm-up Prepare for today, homework:
What does it mean to do a word wall picture? Term, definition and a visual example.

8. Warm-up
List the differences between 2 cans- Coke and diet coke.
How are they similar?
Predict whether they will float or sink in water.

9. Sign out a lap top and log on
Warm-up Per. 2
Sign out a lap top and log on
List any questions you still have about matter, volume, mass, and density.
Next list the 4 states of matter.

10. Warm-up What is solubility? Take out your project rubric
Take the same laptop you had yesterday and continue working on your project.

11. Warm-up
With your partner(s), finish calculating the density of at least 7 of the cubes and complete questions from the density lab.

12. Warm-up
What is a solution? what is a solute, and a solvent? (use your notes handout)
Take out your matter homework questions and your physical properties notes.

13. Introduction to Matter
Physical Properties:
Density
Solubility
States of matter

14. Explain what happens to matter during a physical change.
Objectives
Analyze the physical properties of matter by discovering how physical properties such as density can help identify objects.
Identify and compare the physical properties of matter to include density, melting/boiling points, states of matter, and solubility.
Explain what happens to matter during a physical change.

15. Essential questions
How are the physical properties of matter used to compare pure substances?
What is density?
What are the 4 states of matter?
What is solubility?

16. What are Physical Properties?
Something that can be observed or measured without changing the matter’s identity.
What are Physical Properties?

17. Name some physical properties of this apple

18. What are some specific Physical properties?
Thermal conductivity- how well a substance transfers heat
Phase of matter- solid, liquid or gas
Density- how much mass is in a given space
Density=mass/volume or D=m/v
Solubility- how well a substance dissolves in H2O
What are
some
specific
Physical
properties?

19. Thermal conductivity

20. We will discuss the fourth state briefly in the states of matter
section of this unit

21. Solubility

22. Solubility Solution= Solvent + Solute
COPY THESE DEFINITIONS UNDER THE QUESTION ON THE LEFT SIDE OF YOUR NOTES.
Solution= Solvent + Solute
Solvent: The liquid part of a solution
Solute: The solid/dry that is mixed and dissolved in the solution

23. Solubility Quick Lab (in your notebook)
Materials: SOLUTES: Instant Coffee, Sugar, SOLVENT: water, 2 clear beakers, & spoons. Look at the two solids and hypothesize whether you think each one is soluble in water. Use you spoon to put 1 heaping spoonful coffee into 1 beaker and use the other spoon to put 1 heaping spoonful of sugar into the OTHER beaker. Mix thoroughly and record your results. Which mixture created a SOLUTION? Which one did not?

24. Ductility
Ability to shape into
wires

25. Malleability
Ability to mold into flat sheets and
Shapes.

26. D=M/V

27. How will density help figure out what a substance is?
In liquids, densest liquid sinks to the bottom, least dense floats on top.
Solids can be checked against water’s density (1g/cm3), if solid floats it is less than 1g/cm3, if it sinks it is more than 1g/cm3
How will
density
help figure
out what a
substance is?

28. Density Demonstration
What is the difference between these two golf balls in
the water?
mass, volume and density video
density calculations (only play until 1:36)

29. How do you calculate Density? (the broken heart equation)
What you need
1. Mass=m grams
2. Volume=V cm3, mL, m3, L
Formula
?v=ijj58xD5fDI&feature=youtu. be
How do you calculate Density? (the broken heart equation) m D= D= V

30. Create a chart with 4 columns
Create a chart with 4 columns. Labels across the top from left to right: Item, Mass in grams, Volume in cm3, Density in g/cm3
Item
Mass in grams
Volume in cm3
Density in g/cm3
1 gem
2 gems
Extra time: Mass something in the room-book, pencil…

31. Density QUICK LAB (1) Material Getter: (3) Data Collector:
Graduated cylinder with mL of Water, cup of gems, & triple beam balance.
(2) Lab Initiator:
Drop one marble into the water and observe the displacement
Subtract to find the volume in cm3
(3) Data Collector:
Mass the marble on the balance and record the mass (in grams).
(4) Discussion Leader:
Predict: Will the marble density come out the same if we follow the same steps with 2-8 marbles?
How do we represent the units for density, why?
What does the fraction bar mean?

32. Making Sense of Density Quick Lab
(1)Does the density of a material vary with volume?
(2)Material:
1 crayon with paper removed, paper towel, balance graduated cylinder, approximately 50mL of water.
(3) Procedures:
Create a small chart to record your data
Item
Mass (g)
Volume (cm3 )
Density
Whole Crayon
Crayon Piece 1
Crayon Piece 2

33. Making Sense of Density Quick Lab
Use a balance to find the mass of the whole crayon
Add enough water to a graduated to cylinder to complete submerge the crayon
Use water displacement to measure the volume of the crayon. Record your results in the table.
Use the density formula to calculate the density.
Break the crayon into two pieces.
Repeat procedures for the other two crayon pieces.
Record your results in the table.

34. Data Analysis and Conclusion
For the object you tested, compare the density of the whole object with the densities of the pieces.
Use your results to explain how density can be used to identify a material.

35. Journal Activity
In your journal complete the following activity Today I learned about___________________. The first thing we learned was ____________. Next, _____________________ ____________________. Then, _____________ ___________________. I also learned that ____ _____________. Next time we study _________ ____________________________________, I want to learn more about ______________.

36. What are physical changes?
When matter is changed from one form to another without changing its identity.
Example: water
Water to ice, water to steam, steam to water
What are
physical
changes?

38. Physical change of state https://www.youtube.com/watch?v=zp5UoSNW5G8

40. More Physical change examples:
Shape changes, like crushing a can, melting a popsicle,
dissolving kool-aid, melting butter.
These have changed shape, but are the same type of matter.
More Physical change examples:

41. What are Chemical properties?
Chemical properties describe ways that matter can change into new substances that will have different properties than the original substance.
What are
Chemical
properties?

42. Specific chemical properties: will it burn or not
Flammability or non-flammability
will it burn or not
Reactivity or non-reactivity
will it react with something else
Specific
chemical
properties:

44. Potassium reacting with H2O
2 K + 2 HNO3 ® 2 KNO3 + H2

45. Chemical Reactivity of elements

46. What are Characteristic properties?
Properties that always remain the same no matter
what size of sample there is.
Can be chemical and/or physical.
Describes the sample.
What are
Characteristic
properties?

47. Characteristic properties
magnetism
Color of liquids
Characteristic properties

49. What is a chemical change?
A change that occurs when
one or more substances change
into an entirely new substance(s).
Example: baking a cake

50. What are the signs of a chemical change? Fizzing and foaming
Signs that a chemical
Change has taken place
are:
Change of color Production of heat
Fizzing and foaming
Sound created
Light created
What are
the signs
of a chemical
change?

51. What is composition? The type of matter (the stuff)
that makes up an object and
the way the matter is
arranged in the object.
Chemical changes change
the composition of a
substance.
Example: electrolysis- H2O broken
down into H and O gas

52. Can physical and chemical changes be reversed?? Many physical
changes can be
reversed, but chemical
changes change the
composition and are
not easily, if at all, reversible.
Can physical
and chemical
changes be
reversed??

53. What is the main difference between physical and chemical changes?
In a physical change the substances identity is unchanged
In chemical they are... new substances that are formed
What is the main difference between physical and chemical changes?

54. Chemical Changes

55. Objectives Review Answer the following questions in your notebook.
Identify and compare the physical properties of matter to include density, melting/boiling points, states of matter, and solubility.
Density and melting/boiling point are the most important physical properties in identifying matter.
Explain what happens to matter during a physical change.
A substance undergoes a physical change, but its identity stays the same.
Also…List the six examples of physical changes.
Breaking, melting, freezing, cutting, crushing, and dissolving.

56. Journal Activity In your notebook complete the following.
Summarize today’s lesson in one or two sentences.

57. WORD WALL Term Define Picture It Physical Property Density
Physical Change Solubility
Mass Volume
Matter Phase of matter
Malleability Ductility
Thermal conductility

58. Review for Quiz What is matter? What is mass?
Video clip: The difference between mass and weight
What equipment did we use to measure mass in our labs and what units did we use? (Also be sure you know how to read the mass measurement on the device)
What is volume?
What units for the volume of a solid & a liquid and what are the 2 ways we measured volume in class? (1 other way to measure is the overflow method
Be able to read the volume on a graduated cylinder and use the displacement method.
What is density? Be able to use sink or float method to determine density and be able to use the density equation to find density.
What is a physical property?