WGU C165
Study online at https://quizlet.com/_gzxnby
1. Which question could be answered with a controlled Does ice melt faster in an
experiment? empty glass or in a glass
full of water?
2. Which topic would be appropriate for a controlled ex- Determining how fast dif-
periment? ferent chemical pollutants
dissolve in water
3. Which question requires a controlled experiment to Which type of rock con-
answer? tains the most calcium?
4. Sir Isaac Newton discovered that the force of gravity Law
between two masses increases if the masses increase,
and decreases if the distance between the masses in-
creases. No experiments have ever contradicted this
relationship. Which type of scientific statement is this?
5. If there is evidence that supports an explanation, it is Theory
called what?
6. A student proposes that sugar will dissolve faster in Hypothesis
rubbing alcohol than in water. The student reasons
that sugar and rubbing alcohol both contain carbon so
they will mix more easily. Which type of scientific idea
is the student's proposal an example of?
7. Why was the shrinking Earth idea replaced by the the- Plate tectonics explained
ory of plate tectonics? observations about Earth
that the shrinking Earth
idea could not explain.
8. In 2011, a scientist analyzed 100 NASA-space-mission Carry out further research
photographs of Valles Marineris on Mars. The scien- to gain more understand-
1/6
, WGU C165
Study online at https://quizlet.com/_gzxnby
tist found that Valles Marineris showed features found ing of possible plate tec-
only on Earth where major tectonic plates divide. What tonics on Mars
would be the appropriate response of scientists to this
information?
9. Volcanos form along plate boundaries because of ris- Carry out more research to
ing magma. New data mapping the ocean floor reveals understand better how the
thousands of small volcanoes. Some of the seamounts seamounts form
are in lines that could correspond to past or present
plate boundaries, but many are not aligned in this way.
How should scientists appropriately respond?
10. scientists thought they understood how ozone breaks Conduct additional exper-
down in the stratosphere, creating ozone holes. How- iments to confirm the new
ever, new data show significantly lower reaction rates data
than can be explained by the long-held model. What
is the appropriate scientific approach for dealing with
this contradiction?
11. For almost 1500 years, scientists have accepted Ptole- The existing theory was
my's geocentric planetary model, which suggests that changed to account for
the sun revolves around Earth. By the eighteenth cen- new data
tury, most scientists supported a heliocentric model
that suggests that Earth revolves around the sun. What
is an appropriate scientific basis for this change in
view?
12. Two scientists announced that they were able to pro- Reject the first scientists'
duce nuclear fusion in the laboratory. However, many discovery because the re-
other scientists attempted the same experiment and sults could not be con-
none were able to replicate the results.What is the firmed
appropriate scientific approach for dealing with this
contradiction?
2/6
Study online at https://quizlet.com/_gzxnby
1. Which question could be answered with a controlled Does ice melt faster in an
experiment? empty glass or in a glass
full of water?
2. Which topic would be appropriate for a controlled ex- Determining how fast dif-
periment? ferent chemical pollutants
dissolve in water
3. Which question requires a controlled experiment to Which type of rock con-
answer? tains the most calcium?
4. Sir Isaac Newton discovered that the force of gravity Law
between two masses increases if the masses increase,
and decreases if the distance between the masses in-
creases. No experiments have ever contradicted this
relationship. Which type of scientific statement is this?
5. If there is evidence that supports an explanation, it is Theory
called what?
6. A student proposes that sugar will dissolve faster in Hypothesis
rubbing alcohol than in water. The student reasons
that sugar and rubbing alcohol both contain carbon so
they will mix more easily. Which type of scientific idea
is the student's proposal an example of?
7. Why was the shrinking Earth idea replaced by the the- Plate tectonics explained
ory of plate tectonics? observations about Earth
that the shrinking Earth
idea could not explain.
8. In 2011, a scientist analyzed 100 NASA-space-mission Carry out further research
photographs of Valles Marineris on Mars. The scien- to gain more understand-
1/6
, WGU C165
Study online at https://quizlet.com/_gzxnby
tist found that Valles Marineris showed features found ing of possible plate tec-
only on Earth where major tectonic plates divide. What tonics on Mars
would be the appropriate response of scientists to this
information?
9. Volcanos form along plate boundaries because of ris- Carry out more research to
ing magma. New data mapping the ocean floor reveals understand better how the
thousands of small volcanoes. Some of the seamounts seamounts form
are in lines that could correspond to past or present
plate boundaries, but many are not aligned in this way.
How should scientists appropriately respond?
10. scientists thought they understood how ozone breaks Conduct additional exper-
down in the stratosphere, creating ozone holes. How- iments to confirm the new
ever, new data show significantly lower reaction rates data
than can be explained by the long-held model. What
is the appropriate scientific approach for dealing with
this contradiction?
11. For almost 1500 years, scientists have accepted Ptole- The existing theory was
my's geocentric planetary model, which suggests that changed to account for
the sun revolves around Earth. By the eighteenth cen- new data
tury, most scientists supported a heliocentric model
that suggests that Earth revolves around the sun. What
is an appropriate scientific basis for this change in
view?
12. Two scientists announced that they were able to pro- Reject the first scientists'
duce nuclear fusion in the laboratory. However, many discovery because the re-
other scientists attempted the same experiment and sults could not be con-
none were able to replicate the results.What is the firmed
appropriate scientific approach for dealing with this
contradiction?
2/6
