16Fill in the BlankAll organisms store information they need to live, grow, and reproduce in a genetic code written in a molecule called ______.DNA
17Multiple ChoiceAn experiment in which only one variable is changed.Procedure or processProtocolControlled experimentAnalytic investigation
18True or FalseHomeostasis is a signal to which a living thing reacts.FalseA stimulus is a signal to which a living thing reacts.
19Fill in the BlankThe chemical reactions through which a living thing builds up or breaks down materials are called_____________.metabolism
20Multiple ChoiceThe result or consequence of an action, influence, or casual event.EffectSelectionInferenceCause
21True or FalseEvolutionary change links all forms of life to a common origin more than 3.5 billion years ago.True
22Fill in the BlankAll forms of life are connected into a __________ , which means “living planet.”biosphere
23Multiple Choice Prediction Control group Controlled variable The factor of a system being investigated that is changed to determine that factor’s relationship to the responding variable.PredictionControl groupControlled variableManipulated variable
24True or FalseThe prefix that means 1000 is milli.FalseThe prefix that means 1000 is kilo.
25Fill in the BlankMost scientists use the ________ system when gathering data and doing experiments.metric
26Multiple ChoiceMistakes of perception, measurement, or process during an investigation; an incorrect result or discrepancy.CauseObservationInferenceError
27True or FalseWhen scientists explain “why” something happens, their explanation is about only nature. Science does not include ethical or moral views.True
28Fill in the BlankSometimes, _______ keeps scientists from doing certain kinds of experiments, such as cloning people.ethics
29Multiple ChoiceObservations, measurements, or data collected through established and recognized scientific processes.EvidenceHypothesesTheoriesConsequences
30True or FalseControlled experiments typically involve testing two or more variables at a time.FalseControlled experiments involve testing only one variable at a time.
31Fill in the BlankIn the leaf toughness experiment, the leaf’s exposure to sunlight was the ____________ variable and how easily the leaf ripped was the ___________ variable .manipulatedresponding
32Multiple ChoiceThe factor of a system being investigated that changes in response to the manipulated variable and is measured.Quantitative dataResponding variableControlled variableQualitative data
33True or FalsePlacing the rip-o-meter’s binder clip in the same position on each leaf tested is an example of a controlled variable.True
34Fill in the BlankComparing the toughness of leaves as a function of branch position was best graphed using a ___________________ chart.Scatter plot
35Multiple ChoiceThe conditions that are kept the same from trial to trial in a laboratory investigation.Controlled variablesResponding variableManipulated variableQuantitative data
36True or FalseIn the leaf toughness lab, a strong correlation was found between branch position and ease of ripping.FalseIn the leaf toughness lab, no correlation was found between branch position and ease of ripping.
37Fill in the BlankIn the leaf toughness lab, we can __________ from the data that our hypothesis, which stated that older leaves would be tougher to rip than younger leaves, was not supported by the evidence.conclude
38Multiple ChoiceAn investigation under which the conditions for a phenomenon to occur are arranged beforehand by the investigator.VariableExperimentTrialEffect
39A strong correlation implies causation. True or FalseA strong correlation implies causation.FalseRemember the example about shoe size and math ability among children showing a strong correlation, but certainly no causation.
40Draw a GraphDraw a scatterplot graph that shows a strong correlation between two variables.
41Multiple ChoiceThe part of a controlled experiment that is treated the same as the experimental set-up except for one manipulated variable.Qualitative dataConclusionControl groupObservations
42Multiple ChoiceRecords of experimental observations.InferencesBiasExperimental groupData
43Draw a GraphDraw a scatterplot graph that shows little or no correlation between two variables.
44Multiple ChoiceData that consists of numbers that are found by measuring or counting.VariablesQualitativeQuantitativeSources of Error
45Multiple ChoiceData that consists of descriptions because they cannot be counted.VariablesQualitativeQuantitativeMeasurements
46Draw a GraphDraw a plot of averages with error bars showing a significant difference between two sets of data.
47Multiple ChoiceAn agent or condition that could cause a change.FactorObservationEffectHypothesis
48Multiple Choice Theory Control Validity Hypothesis An attribute of an investigation that describes the degree of confidence that data collected and logical inferences are accurate representations of the phenomena being investigated.TheoryControlValidityHypothesis
49Multiple ChoiceRepetitions of data collection procedures in an investigation .TrialsQuantitative dataInferencesExperimental group
50Multiple Choice Open-mindedness Skepticism Bias Conclusions The attitude in scientific thinking that emphasizes that no fact or principle can be known with complete certainty; the view that all knowledge is uncertain.Open-mindednessSkepticismBiasConclusions
51Draw a GraphDraw a plot of averages with error bars showing no significant difference between two sets of data.
52Multiple ChoiceAn attribute of any investigation that promotes consistency of results during repeated trials.InferencesBiasVariabilityReliability
53True or FalsePeer reviewers may have biases and be prejudiced against studies that contradict their own research or preferred beliefs.True
54Fill in the BlankA _____ is a certain preference or point of view that is personal, rather than scientific.biasBias in weight loss advertisement
55Multiple ChoiceA rigorous process of evaluation of scientific, academic, or professional work by others working in the same field.Peer reviewConclusionsData analysisTheories
56True or FalseThe metric system is harder to use than the old Imperial (standard) system, because it is based on multiples of 10.FalseThe metric system is easier to use than the old Imperial (standard) system, because it is based on multiples of 10.
57Fill in the BlankScientists are __________ and ask questions about what they observe.curious
58Multiple ChoiceAny changed or changing factor used to test a hypothesis or prediction in and investigation that could affect the results.VariableData setInferenceHypothesis
59Fill in the BlankScientists need to think ________ to design experiments that provide good data.creatively
60Multiple ChoiceA well-tested explanation that accounts for a lot of observations and hypotheses and that lets scientists make good predictions.HypothesisEvidenceTheoryObservations
61True or FalseBecause technology uses the discovery process rather than the scientific method, it is not closely linked to science at all.FalseTechnology and science are closely linked. Discoveries in science may lead to new technologies.
62Fill in the BlankOver generations, groups of living things ________ , or change over time.evolve
63Multiple Choice Conclusion Theory Procedure Predictions A summary of how the results of a scientific investigation support or contradict the original hypothesis. This statement also evaluates the experimental procedure and its effectiveness.ConclusionTheoryProcedurePredictions