Transcript Collecting Data OGT Practice…

Collecting Data OGT
Practice…
Question 1

A.
B.
C.
D.
A chemist is doing an experiment to see how
the volume of a certain liquid changed after
undergoing a chemical reaction. Which of the
following instruments would be most useful for
the experiment?
Graduated cylinder
Test tube
Beaker
Balance
Question 2

A.
B.
C.
D.
A scientist is doing an experiment to see
how oxidation affects the mass of iron
based metals. Which of the following
instruments would best help the scientist
determine the results of his study?
Balance
Burette
Anemometer
Barometer
Question 3

A.
B.
C.
D.
A scientist is studying the effects of a new drug
on the bone cortical thickness of osteoporosis
patients. Which unit of measurement is the
most appropriate to measure the thickness of
the cortical bone?
Grams
Inches
Millimeters
Meters
Question 4

A.
B.
C.
D.
Which of the following types of data
organizers is best able to give a quick
view of the relationship among parts of a
data set to the whole data set?
Bar graphs
Circle graphs
Tables
Histograms
Question 5

A.
B.
C.
D.
Which of the following types of data
organizers is best used to show the
relationship between two quantities as
those quantities are changing?
Line graphs
Circle graphs
Histograms
Bar graphs
Question 6

A.
B.
C.
D.
It is important to share data from scientific
experiments with others. Which of the
following methods is a valid way to present
collected data?
There is no need to present scientific data
Record the data in a private lab journal
Give a speech about the data if the data
supports the original hypothesis
Publish the data in an academic journal
Question 7

Year
2001
2002
2003
2004
Examine the table below. If the trend in the
below table continues in the future, what do you
think will happen?
DVD’s Sold vs. VHS Tapes Sold
DVD’s Sold
(in millions)
49
55
56
60
VHS Tapes Sold
(in millions)
63
42
20
13
Year
DVD’s Sold
(in millions)
VHS Tapes
Sold (in
millions)
2001
2002
2003
2004
49
55
56
60
63
42
20
13
A. VHS tapes will eventually not be sold anymore
B. The sale of VHS tapes will pickup
C. The sales of DVD’s will go down
D. Manufacturers will stop producing DVD’s
Question 8
 Examine
the line graph below…if the
population of Centerville continues to
increase at the same rate, what will the
population be in the year 2010?
A. 6,500 people
B. 8,000 people
C. 9,500 people
D. 16,000 people
Question 9

Examine the histogram below. Most adult
sparrows have a wing span falling into which of
the following ranges?
Span in Centimeters
13-15
16-18
Number of Birds
20
80
19-21
22-24
25-27
28-30
470
320
100
10
Span in Centimeters
13-15
16-18
Number of Birds
20
80
19-21
22-24
25-27
28-30
470
320
100
10
A. 13 – 18 cm
B. 25 – 30 cm
C. 22 – 27 cm
D. 19 – 24 cm
Question 10

A.
B.
C.
D.
Which of the following recent
technological advancements have
helped improve communication?
Semaphore
Email
Telegraph
The bullhorn
Question 11

A.
B.
C.
D.
A typical human can clearly see an item
as small as 0.5 mm across. Which form
of technology has enabled humans to
see objects even smaller than this?
A microscope
A telescope
Bifocal lenses
Scale models
Question 12

A.
B.
C.
D.
Food safety is very important to modern
society. Food borne bacteria, such as E.
Coli, can be very dangerous, if not
deadly. Which of the following
technologies is the most effective at
fighting food borne bacteria?
Bio-fuels
Integrated pest management
Irradiation
Plastic packaging
Question 13

A.
B.
C.
D.
Scientists often work together, but in certain
situations, scientists compete with each other.
What could be an advantage of competition in
science?
Competition causes scientists to be punished if
they do not reach their goals
Competition can increase the pace of scientific
advancement
Competition keeps scientists from sharing
knowledge with others
Competition allows the public to know which
scientist is the smartest
Question 14
 Examine
the scientific method flow chart
below. What should you do before you
form a hypothesis?
A. Test a hypothesis
c. Ask a question
B. Communicate the results
D. Study the results
Question 15
Ted would like to enter the local science fair, but he
cannot think of a good hypothesis to test.
Which of the following suggestions is the best
place for Ted to start in order to form a testable
hypothesis?
A. Ted should find a control group for his
experiment
B. Ted should design an experiment and then find
a hypothesis that the experiment will test
C. Ted should make observations about the
natural world
D. Ted should collect data for his experiment and
see what sort of hypothesis might fit the data
Question 16

A.
B.
C.
D.
A researcher would like to find out whether
gamma radiation or beta radiation would
penetrate a concrete wall more rapidly. Which
of the following statements would be best
suited as a hypothesis the researcher could
test?
Will gamma radiation or beta radiation
penetrate a concrete wall in 20 seconds or less
Gamma radiation will penetrate a concrete wall
more quickly than beta radiation
Beta radiation travels faster than gamma
radiation
Both beta radiation and gamma radiation can
penetrate a concrete wall
Question 17

A biologist has hypothesized that a certain
species of bacteria reproduces most rapidly in
an environment where the temperature is
25oC. When the biologist designs her
experiment, what should be the manipulated
variable of the experiment
A. Amount of light
C. Petri Dish Size
B. Temperature
D. Type of baceteria