2.1 - What is science? Flashcards
Science
The study of how nature works and to use that knowledge to make predictions about what is likely to happen in nature.
Data
Information needed to answer questions
Experiments
Procedures carried out under controlled conditions to gather information and test ideas
Model
An approximate representation or simulation of a system being studied
Scientific Theory
A well-tested and widely accepted scientific hypothesis or a group of related hypotheses
Scientific Process
-Identify a problem
-Find out what is known about the problem
-Ask a question to be investigated
-Collect data to answer the question
-Propose a hypothesis to explain the data
-Make testable predictions
-Test the precisions with further experiments, models, or observations
-Accept or reject the hypothesis
Inductive Reasoning
involves using specific observations and measurements to arrive at a general conclusion or hypothesis.
Deductive Reasoning
involves using logic to arrive at a specific conclusion based on a generalization or premise.
Scientific Law/Law of Nature
a well-tested and widely accepted description of what we find happening over and over again in the same way in nature.
Paradigm Shift
occurs when the majority of scientists in a field or related fields accept a new paradigm, or framework for theories and laws in a particular field.
Tentative Science/Frontier Science
preliminary results that capture news headlines that are controversial because they have not been widely tested and accepted by peer review.
Reliable Science
data, hypotheses, theories, and laws that are widely accepted by scientists who are considered experts in the field under study.
Unreliable Science
Scientific hypotheses and results that are presented as reliable without having undergone the rigors of peer review, or that have been discarded as a result of peer review.
Limitations in Environmental Science
-Scientists cannot be 100% sure on anything. Instead, scientists try to establish something that has a very high probability (90-99%).
-Scientists are human and cannot be expected to be totally free of bias
-Statistical tools may not be as accurate or precise
-Environmental phenomena involve a huge number of variables, making it difficult to create experiments.
-The scientific process is limited to understanding the natural world and cannot be used for moral or ethical questions.