Scientific Inquiry Answers

12 verified answers
1
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An inference _______.

A
is a possible explanation for events using prior knowledge
B
explains if a hypothesis is or is not valid
C
is made independent of observation or prior knowledge
D
can be either qualitative or quantitative
2
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Which of the following is an inference?

A
The flower is pink.
B
Vinegar has a pungent aroma.
C
A dog barks.
D
A cup with steam coming from it will be hot to the touch.
3

An observation is _______.

A
a possible explanation for events using prior knowledge
B
always quantitative
C
made using any of the five senses
D
always qualitative
4

A hypothesis is _______.

A
a proposed solution to observed phenomena
B
a question derived from observed phenomena
C
a testable explanation for observed phenomena
D
generated as the final step in scientific inquiry
5

Which of the following statements describes a scientific law?

A
A scientific law explains a set of events.
B
A scientific law describes what occurs every time in a situation.
C
A scientific law is constantly modified.
D
A scientific law is developed without experimentation.
11

An observation is _______.

A
a possible explanation for events using prior knowledge
B
always quantitative
C
made using any of the five senses
D
always qualitative
12

Which of the following is an inference?

A
The flower is pink.
B
Vinegar has a pungent aroma.
C
A dog barks.
D
A cup with steam coming from it will be hot to the touch.
13

A student conducts an experiment to determine how the amount of water given to a plant affects its growth.

A
A
B
B
C
C
D
D
14

Scientific theories are explanations for scientific phenomena that can be changed when and if new information is found to support or refute the explanation. Which of the following statements provides an example of a scientific theory?

A
An object at rest will remain at rest unless acted on by an outside force.
B
Species evolve by passing on advantageous hereditary traits.
C
For every action there is an equal and opposite reaction.
D
In a closed system, energy is neither created nor destroyed.
15

An independent variable is

A
directly changed by the experimenter.
B
manipulated by changes to the dependent variable.
C
a variable that is kept constant.
D
a variable that is used as a control.
16

A student conducts an experiment to determine how the amount of water given to a plant affects its growth.

A
A
B
B
C
C
D
D
17

A hypothesis is _______.

A
a proposed solution to observed phenomena
B
a question derived from observed phenomena
C
a testable explanation for observed phenomena
D
generated as the final step in scientific inquiry
19

Scientific experiments are specially designed to test explanations for an observed phenomenon. A student decides to conduct an experiment to determine the effect that the amount of time spent in the sunlight has on the overall growth of a plant. The student will conduct the experiment using two identical plants that will only spend different amounts of time in the sunlight. All other aspects needed for growth will remain identical for each. In the experiment described, what would the amount of water given to each plant be considered?

A
an observation
B
a dependent variable
C
an independent variable
D
a control or constant

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