1. The Nature of Matter
Chapter 2

2. What will we learn today?
Today we will analyze physical and chemical properties, matter, and substance using Cornell and power Notes, task cards and maps.

3. 1. Describing Matter 2. Matter –what is it?
3. Anything that has mass and takes up space.
3. The “stuff” around you
3. List three examples 4

4. 2. Properties of Matter
3. Matter can have different properties or characteristics
3. Substance – what is it?
4. Single kind of matter that is pure with specific properties.
4. Examples of a substance 5.

5. 3. Every form of matter has two kinds of properties
3. Non-examples of a substance 4
3. Every form of matter has two kinds of properties
4. Physical properties
4. Chemical properties

6. With the Task Cards – Questions and answers B Starts
STOP
With the Task Cards – Questions and answers B Starts

7. 2. Physical Properties of matter
3. A characteristic of a substance that does not form a new substance.
3. Examples : solid, liquid, Gas
3. Other examples? 4.

8. 2. Chemical Properties of matter- what is it?
3. A characteristic of a substance that changes it into a new substance.
3. Example : Flammability or burning of an object
3. Other examples: 4.

9. Stop
With the person sitting next to you discuss the similarities and differences between physical and chemical properties.

10. 3 minute pause
3 questions in your notes using the task cards Summary : 5-7 sentences using the sentence starters on the back of the task cards.

12. Homework Create a concept map for MATTER Create vocab maps for
CHEMICAL PROPERTY,
PHYSICAL PROPERTY,
SUBSTANCE

13. Warm-up
In your notebooks on the left side : Create a VENN Diagram comparing and contrasting Physical property and Chemical Property Be sure to use your book and notes!

14. What we will learn today
Today we will analyze atoms and elements using Cornell notes, task cards and a foldable.

15. 1. Describing Matter 2. Elements – What is it?
3. Pure substance that cannot be broken down into any other substance
3. The simplest substances
3. More than 100 elements
2. Examples of elements: 3

18. 2. ATOMS – what are they?
3. Basic particle from which all elements are made
3. Contains a nucleus which has a positive charge and contains protons and neutrons

19. 3. Contains a “cloud” of electrons outside of the nucleus that has a negative charge 3. Each element has different properties because their atoms are different

22. Q & A
Task Cards!!!! C Starts

23. 3 minute Pause
3 questions Summary = 5-7 sentences!!

24. Homework Foldable: Outside – vocab word
Inside left – definition in your own words
Inside left - pictures

25. What we will learn today
Today we will explain how atoms combine and describe compounds using Cornell Notes and Picture notes.

26. 1. Describing Matter

27. 2. Combining atoms
3. MOST atoms can combine with other atoms from elements
3. Chemical bond – what is it?
4. When atoms combine with a force of attraction between the two atoms
4. Atoms combine to form molecules

29. 3. What is a molecule? 4. Groups of TWO or more atoms held together by chemical bonds

30. 2. Compounds
3. What is a compound?
4. a substance made of two or more elements chemically combined in a set ratio
4. They usually have a chemical formula
5. EX: C6H12O6 = glucose
Ratio is 1:2:1
5. EX: H20 = water
Ratio is 2:1

32. What are the ratios? Ex 1: C12H24O12 Answer : 1:2:1 Ex 2: CH4
Ex 3: CO2
Answer : 1:2

33. 3. When elements are chemically combined, they form compounds having properties that are different from those of the uncombined elements
4. Example : Sugar contains C, H, O which are solids and gasses. However, when they combine, it is a solid

34. Hydrogen

35. Homework
Draw a cartoon or pictures involving the following vocab words: Chemical bond Ratio Compound Molecule

36. Today we will compare and contrast mixtures using Cornell notes and a Venn Diagram.

37. 1. Describing Matter

38. 2. Mixture
3. What is a mixture?
4. Made of two or more substances that are NOT chemically combined
4. Each substance in a mixture keeps its individual properties.
4. The parts of a mixture are NOT combined in a set ratio.

39. 3. Heterogeneous Mixtures
4. You can see the different parts
EX:

40. 3. Homogeneous Mixtures
4. Evenly mixed so you cannot see the different parts
4. A solution is a homogeneous mixture
4. Examples:
5. Salt water
5. Pool water
5. Air
5. sugar water
6. Brass

41. No homogeneous drinks allowed in science class

42. 2. Separating Mixtures
3. Easy to separate because they have their own properties
3. Methods include :
4. Magnetic attraction
4. Filtration
4. Distillation
4. Evaporation

43. Homework
Create a Venn Diagram comparing and contrasting homogeneous and heterogeneous mixtures.
Be sure to have 5 bullet points for each! Challenge yourself!
Include a picture

44. What will we learn today?
Today we will analyze physical and chemical changes AND describe the law of conservation of matter using Cornell Notes, task cards, and concept maps.

45. 1. Changes in Matter 2. Physical Change – what is it?
3. Any change that alters the form or appearance of matter but does not make a new substance
3. Changes in state
4. Solid
4. Liquid
4. Gas

46. 3. Examples
4. Dissolving salt in water 4.

47. 2. Chemical change – What is it?
3. A change in matter that produces one or more new substances with different properties
3. Examples
4. Combustion
4. Electrolysis
5. the use of electricity to break a compound into elements or simpler compounds
4. Tarnishing
4. Oxidation = rusting

48. Combustion

49. Electrolysis

50. Oxidation

51. Tarnishing

52. 2. Law of Conservation of Matter – What is it?
3. Matter is neither created nor destroyed in any chemical or physical change
3. The mass before has to ALWAYS match the mass after
3. No mass is lost or gained during a change
3. mass and atoms are rearranged

53. 3. examples
H + H + O H2O C + O+ O CO2

54. Homework Concept Maps: Law of conservation of matter Chemical change
Physical change

55. What will I learn today?
Today we will Describe energy using Cornell notes, Task cards, and vocab maps.

56. 1. Energy and Matter 3. The ability to do work or cause change
2. Energy – what is it?
3. The ability to do work or cause change
3. Energy is neither created nor destroyed
3. Energy is transformed

57. 1. Energy and matter
2. Thermal Energy – what is it?
3. total energy of all the particles in an object
3. Temperature – what is it?
4. measure of the average energy of the random motion of particles
4. Gas particles are more active in warm temperatures
3. Thermal energy always flows from warm matter to cool matter

58. 3. Endothermic Change – What is it?
4. Energy is taken in or absorbed
4. Examples:
5. Ice Melting 5.

61. 4. Releases energy 4. Examples: 5. Combustion 5.
3. Exothermic Change – What is it?
4. Releases energy
4. Examples:
5. Combustion 5.

64. 2. Electromagnetic energy – what is it?
3. a form of energy that travels through spaces as waves
3. Examples:
4. Light from the sun
4. radio waves
4. X-Rays
3. Chemical and physical changes can be caused by electromagnetic energy

65. 2. Electrical energy – what is it?
3. Energy of electrically charged particles moving from one place to another

66. 2. Chemical Energy – what is it?
3. energy stored in the chemical bonds between atoms
3. Examples :
4. Stored energy in food
4. Gasoline to run cars
3. Bonds are broken to form new bonds 4. typically an exothermic reaction

67. 2. Transforming energy
3. chemical energy may be changed to other forms of energy
3. Other forms of energy may also be changed to chemical energy
3. Examples
4. Burning fuel
4. Photosynthesis

68. Homework
Vocab maps :
Chemical energy
electromagnetic energy
Electrical energy
Thermal energy

69. Chapter 2 Test Review

70. Explain the thermal energy in this picture.

71. What characteristics below do photosynthesis and combustion NOT share
Both involve a chemical change
Both are endothermic changes
Both change energy from one form to another
Both cause changes in matter

72. New substances are always formed when matter undergoes a
Change in shape
Physical change
Change in Temperature
Chemical Change

73. Completion
Warming by the fire would be an example of a ______ change.

74. Matter is Anything that has mass Anything that takes up space
Both A and B
None of these

75. Compare and contrast Homogeneous and Heterogeneous mixtures
Compare and contrast Homogeneous and Heterogeneous mixtures. Be sure to give examples of each. Then explain how they relate to matter.

76. True or false
Every chemical or physical change in matter includes a change in energy.

77. True or False
Flammability is an example of chemical property.

78. How would you classify the burning of natural gas?
Exothermic chemical change
Endothermic chemical change
Exothermic physical change
Endothermic physical change

79. Compare and contrast chemical changes and physical changes
Compare and contrast chemical changes and physical changes. Give examples of each and explain how they relate to matter.

80. Table salt and Table sugar are examples of
Atoms
Elements
Mixtures
Pure substance

81. True or False
A(n) mixture is made of two or more substances that are together in the same place but are not chemically combined.

82. Fireworks exploding in the sky and giving off light is an example of a(n)___.
Endothermic Change
Exothermic Change
Physical Change
Change in Mass

83. If you heat a liquid and measure the temperature at which it boils, you are measuring a(n)
Atomic property
Physical property
Chemical property
Molecular property

84. Completion
Hardness, texture, color, and freezing point are example of ____ properties of matter.

85. What holds atoms together in a molecule?
Density
Gravity
Physical bonds
Chemical Bonds

86. Completion
Energy is released to the surroundings during a(n) ______ change.

87. C12H24O12 is an example of a chemical
Property
Change
Bond
Formula

88. Soil, salad, and sugar water are all examples of
Elements
Compounds
Mixtures
Atoms

89. Which of the following is an example of a homogeneous mixture?
Chicken soup
Salad
Soil
Air

90. The smallest particle of an element is called a(n) atom.
True or False
The smallest particle of an element is called a(n) atom.

91. The ability to do work or cause change describes ____.
Density
Matter
Energy
Mass

92. True or false
A change that produces one or more new substances is called a physical change.

93. True or False
During photosynthesis, plant transform electromagnetic energy from the sun into chemical energy as they make molecules of sugar.

94. Fill in the blank
Every form of matter has two kinds of properties – physical properties and _____ properties.

95. Scientists found that 2 grams of hydrogen reacted completely with 16 grams of oxygen. What was the total mass of water produced?
8 grams
14 Grams
18 grams
32 Grams

96. Substances that cannot be broken down chemically into other substances are
Elements
Compounds
Mixtures
Solutions

97. Completion
Dissolving a spoonful of sugar in tea or coffee is an example of a(n) ____ change.

98. Water is an example of
element
Homogeneous mixture
Compound
Heterogeneous mixture

99. Completion
Endothermic change and exothermic changes are examples of _____ energy.

100. The change in which ice absorbs energy and melts is a(n) ___.
Endothermic Change
Exothermic Change
Chemical Change
Change in Mass