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Topic: Final Exam ReviewAim: Let’s review Scientific Method and Measurement
Do Now: Fill in Measurement Units Chart
HW: Cells and Cell Transport Review Sheet
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Measurement Units
Length
Mass
Volume of a regular solid
Volume of a liquid
Density of a solid
Density of a liquid
mm, cm, m, km
g
cm3
mL or Lg/cm3
g/mL
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0 1 2 3 4cm
What is the length of the object in centimeters? Millimeters?
2.8cm28mm
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Mass = 137.4 gm
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Mass = 25.4 gm
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6cm x 4cm x 3cm = 72cm3
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A student set up the experiment shown below to determine if radish seeds take in oxygen as theygerminate. Methylene blue is a chemical that is blue when oxygen is present, but is colorless whenoxygen is not present. Containers A and B each contained 200 mL of water and 10 drops of methyleneblue. Ten radish seeds were added to container A. Container B had no radish seeds.
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A student examined a rock sample and described it as having particles of various colors that were 1 mm to 12 mm in size. The student was making(1)an inference (2) a prediction(3) a hypothesis (4) an observation
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The purpose of container B in this experiment is to(1) serve as the control container(2) serve as the experimental container(3) show that seeds do not give off oxygen(4) show that seeds do not give off carbon dioxide
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Which statement is an inference?(1) A thermometer shows that the air temperatureis 56°F.(2) A mineral sample of galena produced agray-black streak when tested.(3) Based on previous data, ten hurricanes mayoccur in the year 2013.(4) A weather vane indicates the wind is comingfrom the west.
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All of the liquid from a test tube is poured into abeaker, as shown in the diagram below.
Compared to the liquid that was in the test tube,the liquid in the beaker has(1) a different volume, but the same shape(2) a different volume and a different shape(3) the same volume, but a different shape(4) the same volume and the same shape
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The diagram below shows water in a graduatedcylinder.
A student states that the graduated cylindercontains 150 mL of water. This statement is(1) a prediction (3) a theory(2) an observation (4) a hypothesis
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The diagram below shows 20 grams of two different materials, A and B, on a laboratory balance.
Compared to material A, material B has a different(1) density (3) phase(2) mass (4) shape
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The diagram below shows a triple-beam balance.
What is the maximum mass, in grams, that could be measured by this balance?(1) 110 (3) 610(2) 500 (4) 1510
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The diagram below shows a rock suspended above an overflow container filled with water upto the overflow spout. A graduated cylinder is positioned next to the container to collect water that comes out of an overflow spout.Which property of the rock can be directly determined when the rock is placed in the overflow container?(1) mass (3) volume(2) density (4) hardness
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A student wanted to study the amount of mold growing on pizza at different temperatures. In the experiment, the student set up four identical pans of pizza. Each pan contained the same amount of pizza. The temperatures and light conditions are shown in the data table below.
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One error made in setting up the experiment was that the four pans of pizza(1) were at different temperatures (2) had different ingredients(3) were different sizes (4) received different amounts of light
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The results of one experiment carried out by a research team would be considered valid if1. the experiment had no control setup2. all the members of the research team came to the same conclusion3. the experiment had more than one variable4. the experiment was repeated and
the same results were obtained each time
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Why do scientists make graphs of data from experiments?
1. to observe general trends and patterns in the data
2. to make the observed data more accurate 3. to prevent errors in measuring data 4. to help change the original data tables
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A new idea that is tested in a scientific experiment is known as a(an)
1. theory 2. hypothesis 3. inference 4. observation
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Which statement about the use of independent variables in controlled experiments is correct?
1. A different independent variable must be used each time an experiment is repeated.
2. The independent variables must involve time. 3. Only one independent variable is used for each
experiment. 4. The independent variables state the problem
being tested.
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Why do scientists consider any hypothesis valuable?1. A hypothesis requires no further investigation. 2. A hypothesis may lead to further investigation
even if it is disproved by the experiment. 3. A hypothesis requires no further investigation if it
is proved by the experiment. 4. A hypothesis can be used to explain a conclusion
even if it is disproved by the experiment.
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