UNLV BIO 189 LAB PRACTICAL
UPDATED ACTUAL Exam Questions and
CORRECT Answers
What are the units of measurement for mass? - CORRECT ANSWER - Gram (g)
What are the units of measurement for length? - CORRECT ANSWER - Meter (m)
What are the units of measurement for volume? - CORRECT ANSWER - Liter (L)
What are the units of measurement for temperature? - CORRECT ANSWER - Degrees
Celsius (metric); Degrees Fahrenheit (US)
What is a caliper? - CORRECT ANSWER - A tool for measuring length, has jaws
What is a Balance? - CORRECT ANSWER - A tool for measuring weight
What is the scientific term for "zeroing" a balance? - CORRECT ANSWER - Tare function
what is the function on a scale that subtracts the mass of your measurement vehicle? -
CORRECT ANSWER - Tare function AKA ZEROING OUT MUST KNOW THE WORD
TARE!
What is an independant variable? - CORRECT ANSWER - The factor being manipulated
or changed by the researcher.
What is a Dependent Variable? - CORRECT ANSWER - The response that is being
measured or observed; Depends on the independent variable.
, What are control variables? - CORRECT ANSWER - all other factors that may affect the
outcome of the experiment, that are kept constant throughout the experiment.
What axis on a graph is the independent variable shown? - CORRECT ANSWER - The x-
axis always represents the independent variable.
What axis on a graph is the dependent variable shown? - CORRECT ANSWER - The y-
axis always represents the dependent variable.
What is a control group? - CORRECT ANSWER - The group that is set up the same as the
experimental group but the independent variable does not change; the group that is kept at a
constant/never changes.
What is an experimental group? - CORRECT ANSWER - The group that is subject to
"treatment" or change in the independent variable.
What is a hypothesis? - CORRECT ANSWER - A potential explanation to a question
about an observation; A tentative, testable explanation for an observed phenomenon.
What is a Theory? - CORRECT ANSWER - A general set of principles, supported by
evidence, that explains some aspect of nature.
What is a prediction? - CORRECT ANSWER - what you think might happen as a result of
an experiment. AN IF/THEN STATEMENT!
What is an observation? - CORRECT ANSWER - A piece of the natural world is observed
to work in a certain way.
What are replicates? - CORRECT ANSWER - one of several identical processes, or
observations; an experiment must be able to be repeated or replicated.
UPDATED ACTUAL Exam Questions and
CORRECT Answers
What are the units of measurement for mass? - CORRECT ANSWER - Gram (g)
What are the units of measurement for length? - CORRECT ANSWER - Meter (m)
What are the units of measurement for volume? - CORRECT ANSWER - Liter (L)
What are the units of measurement for temperature? - CORRECT ANSWER - Degrees
Celsius (metric); Degrees Fahrenheit (US)
What is a caliper? - CORRECT ANSWER - A tool for measuring length, has jaws
What is a Balance? - CORRECT ANSWER - A tool for measuring weight
What is the scientific term for "zeroing" a balance? - CORRECT ANSWER - Tare function
what is the function on a scale that subtracts the mass of your measurement vehicle? -
CORRECT ANSWER - Tare function AKA ZEROING OUT MUST KNOW THE WORD
TARE!
What is an independant variable? - CORRECT ANSWER - The factor being manipulated
or changed by the researcher.
What is a Dependent Variable? - CORRECT ANSWER - The response that is being
measured or observed; Depends on the independent variable.
, What are control variables? - CORRECT ANSWER - all other factors that may affect the
outcome of the experiment, that are kept constant throughout the experiment.
What axis on a graph is the independent variable shown? - CORRECT ANSWER - The x-
axis always represents the independent variable.
What axis on a graph is the dependent variable shown? - CORRECT ANSWER - The y-
axis always represents the dependent variable.
What is a control group? - CORRECT ANSWER - The group that is set up the same as the
experimental group but the independent variable does not change; the group that is kept at a
constant/never changes.
What is an experimental group? - CORRECT ANSWER - The group that is subject to
"treatment" or change in the independent variable.
What is a hypothesis? - CORRECT ANSWER - A potential explanation to a question
about an observation; A tentative, testable explanation for an observed phenomenon.
What is a Theory? - CORRECT ANSWER - A general set of principles, supported by
evidence, that explains some aspect of nature.
What is a prediction? - CORRECT ANSWER - what you think might happen as a result of
an experiment. AN IF/THEN STATEMENT!
What is an observation? - CORRECT ANSWER - A piece of the natural world is observed
to work in a certain way.
What are replicates? - CORRECT ANSWER - one of several identical processes, or
observations; an experiment must be able to be repeated or replicated.
