Name _________________________________ Date_________________ Hour____________ Table #________
1st Nine Weeks Test Review
Define the following:
Independent Variable:
Dependent Variable:
Constant:
Control:
Gas:
Liquid:
Solid:
Density:
Qualitative Change:
Quantitative Change:
Atom:
Molecule:
Physical Change:
Chemical Change:
Potential Energy:
Kinetic Energy:
Thermal Energy:
Chemical Energy:
Name _________________________________ Date_________________ Hour____________ Table #________
Student Notes: I investigated yeast, tiny organisms that give off carbon dioxide gas as they grow. In two bottles,
I put 2 mL of yeast, 5 mL of sugar, and water. In Bottle A, I used 250 mL of cold water (20◦C). In Bottle B, I used
250 mL of warm water (40◦C). I attached a balloon to each bottle. After five minutes, I observed bubbles forming
on the surface inside the bottles, and the balloons on both bottles expanded. The balloon on Bottle B became
twice as large as the balloon on Bottle A.
Use the student notes above to match the correct information from Column 2 with each item in Column 1.
Write the letter of the correct answer on the line at the left of the numbers in column 1.
Column 1
Column 2
A. If the water temperature is increased, then the
yeast will give off more gas, because the heat speeds
______1. Problem or Question
things up.
______2. Hypothesis
______3. Materials
B. After five minutes, Balloons A and B expanded
C. Yeast gives off more gas at higher temperatures
D. What factors help yeast grow?
______4. Procedure
______5. Observations
______6. Analysis
______7. Conclusion
E. Balloon B became bigger than Balloon A, so that
means that the yeast in Balloon B gave off more gas.
F. Combine the yeast, sugar and water in the bottle.
Put a balloon on the bottle
G. 4 mL of yeast, 10 mL of sugar, 250 mL of warm
water, 250 mL of cool water.
8. For the following examples, identify the INDEPENDENT VARIABLE (manipulated), the DEPENDENT VARIABLE
(responding) and THREE CONSTANTS (controlled variables).
Does the flavor of gum affect how big a bubble Suzie can blow?
Independent:
Dependent:
Constant:
Constant:
Constant:
Name _________________________________ Date_________________ Hour____________ Table #________
It All Matters!
Properties of Matter A. Use the following list of words to complete the passage about matter and changes of
properties in matter. A word or words may be used more than once or not at all.
chemical
chemical change
chemical equation
chemical reaction
mass
physical
physical change
Products
reactants
volume
Matter is anything that has both (9) _________________________ and (10) ________________________. The
more matter an object has, the larger its (11) _________________________. The more space an object takes
up, the larger its (12)_________________________. Matter has both (13) _________________________ and
(14) _________________________ properties. A (15) _________________________ property can be
observed or measured without changing the identity of the object. Any change in a physical property is known
as a (16) _________________________. In contrast, a (17) _________________________ is a change that
produces a new substances. Another term for this type of change is a (18) _________________________.
Matter:
Fill in the information missing below
State of Matter
Solid
Space between Atoms
21.
Description of
substance
23.
25. Label the parts of the atom.
A.
B.
C.
D.
19.
20.
22.
A lot
No definite shape,
definite volume
24.
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Qualitative or Quantitative? Write qualitative or quantitative next to each statement describing a candle burning. Be ready
to discuss the reasons for your choices!
26. ____________________ The candle is cylindrical in shape.
27. ____________________ It is about 2 centimeters in diameter.
28. ____________________ The length decreased during the observation period.
29. ____________________ The amount of decrease was about .5 centimeters per half
hour
Above each graduated cylinder, label the total liquid volume shown in the cylinder. Use displacement volume
to determine the volume of the irregular object. Below the cylinder record the volume of the object that has
been placed in the second cylinder. No Naked numbers… remember your units!
33. Circle each of the following that IS an example of physical change. Put an X over those that are an
example of a chemical change.
Broken plates
A
Broken bottle
B
Crayons melting
C
Chains rusting
E
D
Match burning
Paper torn
F
Burning Candle
G
Boiling Water
H
Carved Pumpkin
J
I
Cookies baking
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34. At which point is there the most potential
energy?
35. At which point(s) is there kinetic energy?
36. At what point is energy being increased?
37. At what point is energy being decreased?
38. At what point is there the most potential
energy?
39. At what point is there the a change from
potential to kinetic energy?
40. At what point is gravity acting on the ball?
41. A flowering plant grew 10 centimeters in a two-week period and the color of its flowers changed from
white to a pale yellow. Which of the following is true?
A. These are qualitative changes.
B. These are quantitative changes.
C. The plant’s amount of growth is a quantitative change and the plant’s change in color is a
qualitative change.
D. The plant’s amount of growth is a qualitative change and the plant’s change in color is a
quantitative change.
Name _________________________________ Date_________________ Hour____________ Table #________
42. Scientists collected this
pollution data before, during,
and after a volcanic eruption.
Pollution data are measured
in particles per liter.
According to the graph, when
did the eruption occur?
A. between days 3 and 4
B. between days 5 and 6
C. between days 10 and
11
D. between days 14 and
15
43. Between points 2 and 3, energy is
being used to change water from a
A.
B.
C.
D.
Solid to a liquid
Liquid to a solid
Solid to a gas
Liquid to a gas
Solids
Metals
Liquids
Study the Density Table
Bone…….2
Aluminum…2.7
Pure water… 1
Brick….1.8
Copper…. 8.9
Sea water…1.03
44. Name two substances that will float on
water.
A.
Cork… 0.2
Gold….19.3
Alcohol …. 0.8
Ice… 0.92
Iron…..7.8
Glycerin ….1.3
Marble….2.7
Lead … 11.3
Milk …. 1.03
Paraffin … 0.9
Silver ….10.5
Turpentine … 0.9
B.
Rubber …1.2
Mercury …13.6
Bamboo… 0.3
Gasoline …. 0.7
Oak Wood …0.7
Pine Wood … 0.6
45. Name two substances that will sink in
water.
A.
B.