Ch2 study

Question 1

Observation

Answer 1

Earth observation is the gathering of information about planet Earth’s physical, chemical and biological systems via remote sensing technologies, usually involving satellites carrying imaging devices. Earth observation is used to monitor and assess the status of, and changes

Question 2

Hypothesis

Answer 2

A hypothesis is a reasonable explanation to explain a small range of phenomena. A hypothesis is limited in scope, explaining a single event or a fact. A hypothesis must be testable and falsifiable. We must be able to test it and it must be possible to show

Question 3

Prediction

Answer 3

statement of what will happen in the future. In science, a prediction is what you expect to happen if your hypothesis is true. So, based on the hypothesis you’ve created, you can predict the outcome of the

Question 4

Experiment

Answer 4

An experiment is a procedure carried out to support or refute a hypothesis. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated.

Question 5

Variable

Answer 5

The things that are changing in an experiment are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.

Question 6

Experimental group

Answer 6

An experimental group is the group in an experiment that receives the variable being tested. One variable is tested at a time. The experimental group is compared to a control group, which does not receive the test variable. In this way,

Question 7

Control group

Answer 7

Control group, the standard to which comparisons are made in an experiment. Many experiments are designed to include a control group and one or more experimental groups; in fact, some scholars reserve the term experiment for study designs that include a control group.

Question 8

Data

Answer 8

Earth analytics, also known as Earth data science, is a field that uses data science techniques to study Earth processes and solve environmental issues.

Question 9

Correlation

Answer 9

Correlation is the technique of piecing together information from widely separated rock outcrops in order to create an accurate chronological profile of an entire geologic time period.

Question 10

Statistics

Answer 10

Statistics is the science concerned with developing and studying methods for collecting, analyzing, interpreting and presenting empirical data.

Question 11

Mean

Answer 11

Earth sciences are the fields of study concerned with the solid Earth, its waters, and the air that envelops it. They include the geologic, hydrologic, and atmospheric sciences with the broad aim of understanding Earth’s present features and past evolution and using this knowledge to benefit

Question 12

Distribution

Answer 12

Distribution refers to the way something is spread out or arranged over a geographic area. The concept of distribution can be applied to nearly everything on Earth, from animal and plant species, to disease infections, weather patterns, and man-made structures.

Question 13

Probability

Answer 13

particular event or series of events will occur. Typically, the chance of an event or series of events will occur is expressed on a scale from 0 (impossible) to 1 (certainty) or as an equivalent percentage from 0 to 100%. The probability (Pf) of a favorable outcome is.

Question 14

Sample

Answer 14

The geological sample is a representative unit of soil, rock, ore, fluid, or gas that is selected from a larger mass or volume to serve as an example of that larger body or to reflect some specific feature or variation within it.

Question 15

Risk

Answer 15

Risk, on the other hand, is the statistical potential that such a hazard will actually lead to loss of life or property. Disasters happen when a hazard does, in fact, inflict harm to people or property