Bio 200 Lab quizzes
Lab quiz #1 - answer-----
Describe the scientific method
& if reject... - answer-Make observations
-Ask questions
-Check accumulated scientific data
-Formulate hypothesis
-run multiple controlled experiments
-make conclusions and accept of reject orig hypothesis
-report findings
**if reject.. formulate new hypothesis
Generally a hypothesis leads to very specific --- - answer scientific predictions
the prediction made with initial hypothesis is --- - answertestable
There are several factors to keep in mind when designing a scientific experiment: (3) -
answer-variables (need to be tested,measured and held constant)
-controls (to be run)
-replicate (how many times to replicate and experiment)
Independent variables - answervariables that cause changes in dependent variables
Dependent variables - answerthings that are expected to change in response to
variation in independent variables
Standardized variables - answerheld constant for all subjects in an experiment
**keep things the same so that it doesn't affect experiment (ex: the same weather during
experiments)
controls in an experiment - answersomething that you can compare experiment to
Why is replication and sample size important? - answerThe more of both, the more
accurate
scientific knowledge gained through the process of scientific investigation is based on -
answergeneralizations & conclusions drawn from specific observations and experiments
, generalizations & conclusions drawn from specific observations and experiments is
known as - answerinductive reasoning
any info gathered through observations & experiments is known as - answerinductive
reasoning
any info gathered through inductive reasoning has --- - answera level of uncertainty
we must rely on observations of --- - answersamples
Scientific "facts" are always regarded with a certain level of --- - answerskepticism
rather than the absolute truth
New Knowledge is actually an accumulation of -- - answerevidence in support of
hypotheses
when we accept a hypothesis as "true" we do so on --- - answera conditional basis,
recognizing that some future technology, experiment, or other info may falsify it
What facilitates a conditional basis, recognizing that some future technology,
experiment, or other info may facilitate it ? - answerthe scientific method
When we examine the method of scientific inquiry closely, it is clear then that a single
experiment can prove a hypothesis --- - answerfalse
how easy is it for us to believe that a hypothesis is true? - answerit takes many
investigations
When we prove a hypothesis false, we say that we --- it - answerfalsify or refute
Scientists avoid saying that an investigation ---- - answerproves a hypothesis true,
recognizing the level of uncertainty involved in inductive reasoning
Instead of scientists saying "proves true" they say - answerthey say that the data
support the hypothesis
What scientific investigation does not involve hypothesis testing? - answerobservation
and comparison
Scientific knowledge is knowledge that can be proven --- - answercan be proven false
Can this be answered with a scientific inquiry?
Do blondes make better dance partners? - answerno
Can this be answered with a scientific inquiry?
Lab quiz #1 - answer-----
Describe the scientific method
& if reject... - answer-Make observations
-Ask questions
-Check accumulated scientific data
-Formulate hypothesis
-run multiple controlled experiments
-make conclusions and accept of reject orig hypothesis
-report findings
**if reject.. formulate new hypothesis
Generally a hypothesis leads to very specific --- - answer scientific predictions
the prediction made with initial hypothesis is --- - answertestable
There are several factors to keep in mind when designing a scientific experiment: (3) -
answer-variables (need to be tested,measured and held constant)
-controls (to be run)
-replicate (how many times to replicate and experiment)
Independent variables - answervariables that cause changes in dependent variables
Dependent variables - answerthings that are expected to change in response to
variation in independent variables
Standardized variables - answerheld constant for all subjects in an experiment
**keep things the same so that it doesn't affect experiment (ex: the same weather during
experiments)
controls in an experiment - answersomething that you can compare experiment to
Why is replication and sample size important? - answerThe more of both, the more
accurate
scientific knowledge gained through the process of scientific investigation is based on -
answergeneralizations & conclusions drawn from specific observations and experiments
, generalizations & conclusions drawn from specific observations and experiments is
known as - answerinductive reasoning
any info gathered through observations & experiments is known as - answerinductive
reasoning
any info gathered through inductive reasoning has --- - answera level of uncertainty
we must rely on observations of --- - answersamples
Scientific "facts" are always regarded with a certain level of --- - answerskepticism
rather than the absolute truth
New Knowledge is actually an accumulation of -- - answerevidence in support of
hypotheses
when we accept a hypothesis as "true" we do so on --- - answera conditional basis,
recognizing that some future technology, experiment, or other info may falsify it
What facilitates a conditional basis, recognizing that some future technology,
experiment, or other info may facilitate it ? - answerthe scientific method
When we examine the method of scientific inquiry closely, it is clear then that a single
experiment can prove a hypothesis --- - answerfalse
how easy is it for us to believe that a hypothesis is true? - answerit takes many
investigations
When we prove a hypothesis false, we say that we --- it - answerfalsify or refute
Scientists avoid saying that an investigation ---- - answerproves a hypothesis true,
recognizing the level of uncertainty involved in inductive reasoning
Instead of scientists saying "proves true" they say - answerthey say that the data
support the hypothesis
What scientific investigation does not involve hypothesis testing? - answerobservation
and comparison
Scientific knowledge is knowledge that can be proven --- - answercan be proven false
Can this be answered with a scientific inquiry?
Do blondes make better dance partners? - answerno
Can this be answered with a scientific inquiry?
