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Scientific Method > Scientific Method > Flashcards

Scientific Method Flashcards

0
Q

Gel electrophoresis

A

A test to compare DNA or protein DNA is cut with enzymes then poured into wells. Small fragments fall to the bottom of the plate compare bending patterns to readings.

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1
Q

Chromatography

A

A test to separate pigment.

Put pigment above water level.

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2
Q

Compound light microscope

A

Magnifies translucent objects

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3
Q

Indicator

A

A chemical that changes color w/ another chemical

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4
Q

Control

A

Reference points used for comparison.

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5
Q

Dependent variable

A

Data that will be measured

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6
Q

Hypothesis

A

An educated prediction, a tentative explanation to an observation

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7
Q

Independent variable

A

The variable that the investigator manipulates

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8
Q

Placebo

A

A “sugar pill” given in medicinal studies to the control group.

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9
Q

Sample size

A

Number of subjects in an experiment

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10
Q

Theory

A

A more complex scientific law

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11
Q

Bias

A

Belief that is influenced by assumptions

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12
Q

Peer review

A

Several scientists examine the details of the experiment

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13
Q

Conclusion

A

Decision about the results

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14
Q

Controlled experiment

A

Experiments where the only variation between groups is deliberate

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15
Q

Data

A

Information gathered from experiments

16
Q

Observation

A

Data that is collected by the senses

17
Q

Dichotomous key

A

Chart with two options per level, used to classify organisms

18
Q

Dissection

A

Examination of preserved specimens

19
Q

Graduated cylinder

A

Tool used to measure liquid volume

20
Q

Magnification

A

Enlarge the view of the object

21
Q

Mass

A

Quantity of matter

22
Q

Metric ruler

A

Tool used to determine length in metric units

23
Q

Model

A

A representation of a concept that is difficult or impossible to view

24
Q

Stain

A

Chemical used to enhance microscopic view of biological samples

25
Q

Triple beam balance

A

Instrument used to find mass grams

26
Q

Volume

A

The space an object occupies

Scientific Method (1 decks)

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