Scientific Communication

Question 1

Bar Graph

Answer 1

Visual representation of data which compares values in different categories

Question 2

Histogram

Answer 2

A visual representation of data which compares frequencies of different numerical intervals

Question 3

Line graph

Answer 3

A visual representation of data which shows change over time or in response to a manipulated variable

Question 4

Correlation research

Answer 4

Type of non-experimental investigation in which the researcher may study two variables, but does not control the rest of the conditions of the study

Question 5

Margin of error

Answer 5

Deviation or variation of a value from the correct or expected value to allow for error in equipment or calculations

Question 6

Non-experimental investigation

Answer 6

A research method in which conditions are not carefully controlled; the scientist may study an independent and/or dependent variable, but does not control the other factors in the investigation

Question 7

Experimental group

Answer 7

A group of specimens in an experiment to which a change is made; receives the experimental treatment

Question 8

Quasi-experimental research

Answer 8

Type of non-experimental investigation in which the researcher studies the effects of an independent variable, but chooses experimental groups rather than assigning them randomly

Question 9

Stem-and-leaf plot / stemplot

Answer 9

A plot that splits each data value into a “leaf” (usually the last digit) and a “stem” (the other digits). stemplots are used for smaller sets of quantitative data. You can easily identify outliers, data clusters, or gaps on a stemplot

Question 10

Single variable research

Answer 10

Type of non-experimental investigation in which the researcher makes observations before and after the application of a treatment or question

Question 11

Experimental investigation

Answer 11

Researchers assign subjects in the sample to certain treatments, then observe the effects of the treatment. Can show causation (cause-and-effect)

Question 12

Control group

Answer 12

A group of specimens in an experiment to which no change is made; does not receive the experimental treatment

Question 13

Meniscus

Answer 13

The downward curve on the surface of a liquid caused by the adhesion of the liquid on the glassware

Question 14

Variables

Answer 14

Factors affecting the outcome of an experimental investigation

Question 15

Tare

Answer 15

To set a balance equal to zero to ensure an accurate measurement with no cantaminants

Question 16

Pie chart

Answer 16

A graphing which is circle is divided into sectors that each represent a proportion of the hole. Pie charts are helpful when displaying the relative distribution of categories

Question 17

Dot plot

Answer 17

A graph that uses dots to show the frequency counts of a group of data. Dot plots are used for small sets of quantitative data. You can easily identify the mode, the shape or skew of the graph, and potential outliers on a dot plot

Question 18

Double bar graph

Answer 18

A visual representation of data which compares values in different categories and group

Question 19

Quantitative Data

Answer 19

Data which is measured and usually expressed numerically

Question 20

Qualitative Data

Answer 20

Data which is described rather than measured

Question 21

Independent variable

Answer 21

A variable that is manipulated by the scientist conducting the experiment to see if that cause a change

Question 22

Controlled variable

Answer 22

A variable that is kept stable throughout the experiment, across control and experimental groups, to ensure that any difference in the dependent variable is because of the independent variable

Question 23

Dependent variable

Answer 23

A variable that is measured by the scientist conducting the experiment

Question 24

Outlier

Answer 24

A data point either much larger than or much smaller than the other data points in the set

Question 25

Peer review

Answer 25

The process of fact checking by other experts in the same field; ensures the quality of published work