NAME:_______________________________________________________________ period: ______
ISSUED MONDAY, November 30th, 2015
6th grade physical science exam study guide 2nd 9 weeks
1. no definite shape and no definite volume? gas
2. definite shape and definite volume? solid
3. no definite shape but definite volume? liquid
4. Particles that move in a fixed vibrating position are an
example of solid
5. Particles that move fast and far apart are an example of gas
6. Particles that are able to slide over one another are an
example of liquid
Change of state
sublimation
melting
vaporization
freezing
condensation
7. What is a change from a liquid to a gas; that occurs throughout a
liquid? boiling
8. What is a change from a liquid to a gas; that occurs at the surface
of a liquid below its boiling point? Evaporation
9. All changes of state are physical changes
10. Rank solids, liquids, and gases in order of decreasing particle
speed. gas, liquid, solid
11. After taking a shower, you notice that small droplets of water
cover the mirror. This is an example of condensation
Use the picture above to answer questions 12-15
12. What is the boiling point of the above substance?800C
13. What is the melting point of the above substance?200C
14. What is the freezing point of the above substance? 200C
15. Which state is present at 00C? solid
16. An example of sublimation? dry ice
17. What is the smallest particle into which an element can be
divided and still be the same substance? atom
18. What is the scientific method?
A series of steps that scientists use in an investigation.
19. What is a theory? A unifying explanation for a broad range
Direction
Solid  gas
Solid  liquid
Liquid  gas
Liquid  solid
Gas  liquid
of hypotheses and observations that have been supported by testing.
20. What is the independent variable? The variable that is changed
in a controlled experiment (manipulated variable)
21. What is the dependent variable? The variable that may change
as a result of a change in the independent variable. (responding
variable)
22. What is an observation? Using one or more of your senses to
identify or learn about something.
23. What is an inference? Is a conclusion formed from available
information or evidence.
24. An example of an observation? Red shirt
25. An example of an inference? Sneezed must be sick
26. What is the law of conservation of mass? Matter cannot be
created or destroyed
27. What is Solubility? the ability of a substance to dissolve in a
liquid
28. What is Conductivity? is the ability of a material to transfer
heat and electricity.
29. What is Malleability? is the ability to be bent, flattened or
hammered without breaking.
30. What is Ductility? is the ability to be pulled into thin wires
without breaking.
31. What is Hardness? is the ability of the material to scratch
another material.
32. What is Density? is the measurement of how much mass
fits within a certain volume.
33. What is measured in grams per cubic centimeter. (g/cm3)?
Density
34. What is product? The substance that form as a result of the
reaction
35. What is reactant? The substance that exist before the reaction
36. What form do scientists use to state predictions so that they
can be tested? hypothesis
37. What is an example of a hypothesis? If the amount of salt
solution decreases, then the height of the plant growth will increase.
38. What is physical science? The study of matter and energy
39. Which metric unit would the mass of a rhinoceros mostly likely?
kilograms
40. What is quantitative data? Data that can be measured
(numbers)
41. What is qualitative data? Data that is descriptive and cannot
be measured (words)
42. Volume of liquid is measured using what scientific tool?
Graduated cylinder
43. Weight is measured using what scientific tool? Spring scale
44. What is mean? The sum of a set of data divided by the number
of entries in the data set
45. What is median? Is the middle number in a set of data when
the data are arranged in numerical order
46. What is mode? The number that appears the most often in a
set of data.
47. Organizing results into tables and graphs makes it easier to analyze data.
48. What is mass? The amount of matter in an object.
49. What is volume? The amount of space an object takes up
50. What is matter? Anything that has mass and takes up space
51. One cubic centimeter is equal to 1 milliliter (mL)
52. What is physical change? Changes the form of an object
without changing what type of matter it is
53. What is chemical change? Changes in matter in which a new
substance is formed
54. What is physical property? Substances that can be observed
without changing the identity of the substance
55. What is chemical property? Is the ability of a substance to
combine with or change into one or more new substances.
56. What is the formula for the volume of a regular shaped object?
lxwxh
57. How do you calculate the volume of an irregular shaped object
such as a screw? Water displacement, subtract the final volume
of water in a graduated cylinder from the starting
volume of water in a graduated cylinder.
58. What is the charge of an electron? negative
59. What is the charge of a proton? positive
60. What is the charge of a neutron? neutral
61. Where is the nucleus found in an atom? the center
62. What is found inside the nucleus of an atom? proton & neutron
63. Where is most of the mass in an atom found? nucleus
64. Where is most of the empty space in an atom? Electron cloud
65. What are electron clouds? there are regions found inside the
atom where electrons are likely to be found
66. What are isotopes? Atoms that have the same number of
protons, but different numbers of neutrons.
67. What is the mass number? The sum of the protons and
neutrons in an atom.
68. What is the weighted average of the masses of all the naturally
occurring isotopes of an element? atomic mass
69. In the periodic table what is a period? a row of elements
70. In the periodic table what is a group? a column of elements
71. What is the atomic number? number of protons
72. What are metalloids? They have properties of both metals &
Nonmetals
73. What are alkali metals? Elements in Group 1. Most reactive
metals. One electron in their outer level
74. What are noble gases? Group 18. Unreactive elements.
They have 8 electrons in their outer level.
75. What are halogens? Group 17. Very reactive nonmetals.
They have seven electrons in their outer level.
76. What are alkaline-earth metals? Group 2. Reactive metals.
2 electrons in the outer level.
77. Why are there different colored boxes on the periodic table?
Metals, metalloids, & nonmetals
78. Why are there different colored symbols on the periodic table?
Solid, liquid, & gas
79. How is today’s periodic table arranged? Atomic number
Label the parts of an atom:
80.
81.
82.
83.
Atomic number = number of protons = number of electrons
Mass number = protons + neutrons
Mass number = round the atomic mass to the nearest whole number and
subtract the Atomic number from the mass number to get the number of neutrons
Subtract the Atomic number from the atomic mass to get the number of neutrons
3
Li
Lithium
6.9
4
Be
Beryllium
9.0
5
B
Boron
10.8
6
C
Carbon
12.0
Use the table above to answer questions 84 - 92:
84. What is the symbol for Lithium? Li
85. What is the symbol for Carbon? C
86. What is the mass number of Lithium? 7
87. What is the atomic number of Lithium? 3
88. How many protons does Beryllium have? 4
89. How many electrons does Carbon have? 6
90. How many neutrons does Boron have? 6
91. What is the atomic mass of Boron? 10.8
92. How many neutrons does Beryllium have? 5
93. What is endothermic reaction? A Chemical reaction that
absorb energy
94. What is exothermic reaction? A chemical reaction that
releases energy
95. What is a compound? A substance made of two or more
elements that are chemically joined in a specific combination.
96. What is a material in which charges can move easily? conductor
97. What is a material in which charges can not easily move? insulator
98. How do objects become charged? Determined by the gaining
or losing of electrons
99. What are the examples of good conductors? Metals and water
100. What are the examples of good insulators? Plastic, rubber,
glass, wood, and air