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 fragments fall to the bottom of plate.
Compare banding patterns to read

Question 1

Chromatography

Answer 1

A test to separate pigments (colors)

Put pigment above the water line

Question 2

Indicator

Answer 2

A chemical that changes color w/ another chemical.

      Ex: Iodine = Amber
    Iodine + Starch = Blue/Black

Question 3

Compound light Microscope

Answer 3

Type of microscope that magnifies translucent objects

Question 4

Dichotomous Key

Answer 4

A chart with two options per level, it’s used to classify the specimen of organism you are studying

Question 5

Dissection

Answer 5

To examine a preserved specimen

Question 6

Graduated Cylinder

Answer 6

Tool used to measure liquid volume

Question 7

Magnification

Answer 7

Used on a microscope or a magnifying glass, to view the object at a larger size.

Question 8

Mass

Answer 8

Quantity of matter

Question 9

Metric Ruler

Answer 9

Tool used to measure the metric system with metric units

Question 10

Model

Answer 10

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

Question 11

Stain

Answer 11

Chemical used to enhance microscopic view of biological samples

Question 12

Triple Beam Balance

Answer 12

Instrument used to find mass in grams

Question 13

Volume

Answer 13

The space an object occupies

Question 14

Conclusion

Answer 14

Decision about the results

Question 15

Control

Answer 15

Reference point used for comparison between the two groups.

Ex: This group receives a placebo.

Question 16

Controlled Experiment

Answer 16

Experiment where the only variation between two groups is deliberate

Question 17

Data

Answer 17

Information gathered from your experiment. It can be graphs, charts or just notes.

Question 18

Dependent variable

Answer 18

Data that will be measured

Question 19

Hypothesis

Answer 19

An educated prediction, a tentative explanation to an observation

Question 20

Independent Variable

Answer 20

The variable that the investigation manipulates

Question 21

Observation

Answer 21

Data that is collected by the senses

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

Used for the control group in medicine studies

Saline shot or sugar pill

Question 26

Sample Size

Answer 26

Large group of test subjects

Must have a large sample size to have accurate and reliable data

Question 27

Theory

Answer 27

A hypothesis that has been supported many many many times. Similar to a law but more complex understanding

Question 28

Lexi Cooper

Answer 28

Scientific Method Vocab