The document discusses key concepts in chemistry including elements, atoms, pure substances, compounds, mixtures, solutions, suspensions, viscosity, density, solutes, solvents, flammability, reactivity, and filtration. It defines each term and provides examples. The document also includes study questions about separating mixtures, gas pressure and volume, states of matter, and factors that influence boiling points.

2. Chapter 2.1-2.2

3. Chapter 2.1-2.2
Corinne A. Price
Science 8-3

5. Elements

6. Elements
A substance that cannot be broken down into smaller substances.

7. Elements
A substance that cannot be broken down into smaller substances.
About 100 elements

8. Elements
A substance that cannot be broken down into smaller substances.
About 100 elements
The smallest particle is the Atom.

9. Elements
A substance that cannot be broken down into smaller substances.
About 100 elements
The smallest particle is the Atom.

10. Elements
A substance that cannot be broken down into smaller substances.
About 100 elements
The smallest particle is the Atom.

12. Pure Substance

13. Pure Substance
A pure substance is matter that is always made up of the same
composition.

14. Pure Substance
A pure substance is matter that is always made up of the same
composition.
Take sugar and salt, they are pure substances, sand is not

15. Pure Substance
A pure substance is matter that is always made up of the same
composition.
Take sugar and salt, they are pure substances, sand is not

16. Pure Substance
A pure substance is matter that is always made up of the same
composition.
Take sugar and salt, they are pure substances, sand is not

17. Pure Substance
A pure substance is matter that is always made up of the same
composition.
Take sugar and salt, they are pure substances, sand is not

19. Compound

20. Compound
A substance that is made up of more than one simpler substances.

21. Compound
A substance that is made up of more than one simpler substances.
Water for instance is a compound!

22. Compound
A substance that is made up of more than one simpler substances.
Water for instance is a compound!

24. Mixtures

25. Mixtures
There are two mixtures, one Heterogeneous and one Homogeneous.

26. Mixtures
There are two mixtures, one Heterogeneous and one Homogeneous.
Heterogeneous is where the components are visibly different; such
as salsa.

27. Mixtures
There are two mixtures, one Heterogeneous and one Homogeneous.
Heterogeneous is where the components are visibly different; such
as salsa.
Homogeneous is where the difference in the ingredients is
unnoticeable like in sprite.

28. Mixtures
There are two mixtures, one Heterogeneous and one Homogeneous.
Heterogeneous is where the components are visibly different; such
as salsa.
Homogeneous is where the difference in the ingredients is
unnoticeable like in sprite.

29. Mixtures
There are two mixtures, one Heterogeneous and one Homogeneous.
Heterogeneous is where the components are visibly different; such
as salsa.
Homogeneous is where the difference in the ingredients is
unnoticeable like in sprite.

31. Solutions, suspensions,
and colloids

32. Solutions, suspensions,
and colloids
Suspensions are heterogeneous mixtures that separate into layers
over time. If you were to look on a food label and see a sign that
says “shake well before use” that would normally mean that the
substance is a suspension.

33. Solutions, suspensions,
and colloids
Suspensions are heterogeneous mixtures that separate into layers
over time. If you were to look on a food label and see a sign that
says “shake well before use” that would normally mean that the
substance is a suspension.
Solutions are homogeneous mixtures that cannot separate.

34. Solutions, suspensions,
and colloids
Suspensions are heterogeneous mixtures that separate into layers
over time. If you were to look on a food label and see a sign that
says “shake well before use” that would normally mean that the
substance is a suspension.
Solutions are homogeneous mixtures that cannot separate.
Colloids are in between a suspension and a solution. they don’t
separate into layers and you cannot separate them through a filter.

35. Solutions, suspensions,
and colloids
Suspensions are heterogeneous mixtures that separate into layers
over time. If you were to look on a food label and see a sign that
says “shake well before use” that would normally mean that the
substance is a suspension.
Solutions are homogeneous mixtures that cannot separate.
Colloids are in between a suspension and a solution. they don’t
separate into layers and you cannot separate them through a filter.

36. Solutions, suspensions,
and colloids
Suspensions are heterogeneous mixtures that separate into layers
over time. If you were to look on a food label and see a sign that
says “shake well before use” that would normally mean that the
substance is a suspension.
Solutions are homogeneous mixtures that cannot separate.
Colloids are in between a suspension and a solution. they don’t
separate into layers and you cannot separate them through a filter.

37. Solutions, suspensions,
and colloids
Suspensions are heterogeneous mixtures that separate into layers
over time. If you were to look on a food label and see a sign that
says “shake well before use” that would normally mean that the
substance is a suspension.
Solutions are homogeneous mixtures that cannot separate.
Colloids are in between a suspension and a solution. they don’t
separate into layers and you cannot separate them through a filter.

39. Viscosity

40. Viscosity
Viscosity is the resistance to flow. Like honey and water.

41. Viscosity
Viscosity is the resistance to flow. Like honey and water.

42. Viscosity
Viscosity is the resistance to flow. Like honey and water.

44. Density

45. Density
Density equals mass over volume.

46. Density
Density equals mass over volume.
When you put oil and vinegar together, the vinegar will sink to
the bottom because it has a larger density.

47. Density
Density equals mass over volume.
When you put oil and vinegar together, the vinegar will sink to
the bottom because it has a larger density.

49. Solute

50. Solute
A substance that is being dissolved in a
lesser amount than the solvent.

51. Solute
A substance that is being dissolved in a
lesser amount than the solvent.
Salt in salt water is an example.

52. Solute
A substance that is being dissolved in a
lesser amount than the solvent.
Salt in salt water is an example.

54. Solvents

55. Solvents
The substance doing the dissolving in a
greater amount.
Tea in sweetened tea is an example.

56. Solvents
The substance doing the dissolving in a
greater amount.
Tea in sweetened tea is an example.

58. Flammability

60. A materials ability to burn in the presence of
oxygen.

61. A materials ability to burn in the presence of
oxygen.

65. Reactivity

66. Reactivity
How readily a substance combines chemically
with another substance.

67. Reactivity
How readily a substance combines chemically
with another substance.

68. How readily a substance combines chemically
with another substance.

72. Filtration

73. Filtration
A process that separates materials based on
their particles.

74. Filtration
A process that separates materials based on
their particles.

75. A process that separates materials based on
their particles.

79. Study Questions

80. Study Questions
I have a mixture of sand, slat, and sulfur.
How am i going to separate them. Give me a
list of procedures.

81. I have a mixture of sand, slat, and sulfur.
How am i going to separate them. Give me a
list of procedures.

84. I have a mixture of salt and water, list the
procedures of how to separate the two
components.

87. How does the pressure of gas relate to the
volume of gas?

90. Provide an example of each of the three
state of matter that exist at room
temperature.

93. Why does water have different boiling points
at different altitudes?