Scientific Method

Question 0

Gel electrophoresis

Answer 0

A test to compare DNA or proteins.

DNA is cut with enzymes then placed in wells

Small fragment Fall to bottom of plate compare banding patterns to read.

Question 1

Chromatography

Answer 1

A test to separate pigments

Put pigment above waterline.

Question 2

Indicator

Answer 2

A chemical that changes color with another color.

Ex iodine = amber

Iodine+starch=blue/black

Question 3

Conclusion

Answer 3

Decision about the results.

Question 4

Control

Answer 4

Reference point used for comparison

Question 5

Controlled experiment

Answer 5

Experiment where the only variation between groups is deliberate .

Question 6

Data

Answer 6

Information gathered from experiment.

Question 7

Dependent variable

Answer 7

Data that will be measured

Question 8

Hypothesis

Answer 8

An educated prediction, a tentative explanation to an observation.

Question 9

Independent variable

Answer 9

The variable that the investigation manipulates

Question 10

Observation

Answer 10

Data that is collected by the senses.

Question 11

Compound light microscope

Answer 11

Magnifies translucent objects

Question 12

Dichotomous key

Answer 12

Chart with 2 options per level, used to classify organisms.

Question 13

Dissection

Answer 13

Examination do preserved specimens

Question 14

Graduated cylinder

Answer 14

Tool used to measure liquid volume.

Question 15

Magnification

Answer 15

Enlarge the view of the object

Question 16

Mass

Answer 16

Quantity of matter

Question 17

Metric ruler

Answer 17

Tool used to determine length in metric units

Question 18

Model

Answer 18

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

Question 19

Stain

Answer 19

Chemical used to enhance microscopic view of biological samples

Question 20

Triple beam balence

Answer 20

Instrument used to find mass in grams

Question 21

Volume

Answer 21

The space an object occupies

Question 22

Bias

Answer 22

Belief that is influenced by assumptions

Question 23

Inference

Answer 23

Conclusions based on observations

Question 24

Peer review

Answer 24

Several scientists examine the details of the experiment.

Question 25

Placebo

Answer 25

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

Question 26

Sample size

Answer 26

Number of subjects in an experiment

Question 27

Theory

Answer 27

A more complex scientific law

Question 28

Andrew

Answer 28

Thompson