Test 1 Slide Questions

Observations, Questions, Hypothesis, predictions, Test, Results

the researcher actively chooses and manipulates the independent variable. These are not always possible, such as in the case of global climate change.

compare how different variables are expressed in naturally occurring, but different, contexts. The independent variable varies naturally, and scientists search for correlation, or statistical association, between variables.

Sources of scientific information: o Peer-reviewed – double blind reviewed by experts o Gray literature – technical documents written by scientist/experts o Popular press o Primary v. secondary sources

Double Blind Reviewed by experts

Technical documents written by scientists/ experts

judges actions based on their effects on ecological systems, which contain both living and nonliving elements and relationships between them.

ascribes inherent value to living things.

ascribes value to nature only to the extent that it benefits humans in some way

promoted a preservation ethic, believing that the environment should be protected in a pristine, unaltered state. o “Everybody needs beauty as well as bread, Places to play in and pray in, where nature may heal and give strength”

promoted the conservation ethic, which holds that people should put natural resources to use but have a responsibility to use them wisely. o “…greatest good of the greatest number for the longest time…”

was originally a forest manager who embraced the government policy of shooting predators to increase the population of deer and other game animals. o “A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise.”

involves the fair and equitable treatment of all people with respect to environmental policy and practice, regardless of their income, race, or ethnicity. o Poor people and ethnic minorities tend to be exposed to more pollution, hazards, and environmental degradation than wealthier people.

how resources/burdens are distributed

who gets to participate in decision making

which frameworks/points of view are recognized

A system’s output may serve as input back into the same system

results when the system moving in one direction acts as an input that causes the system to move in the opposite direction.

occur when increased output in a system leads to increased input, which further stimulates output.

All material in the universe that has mass and occupies space.

A fundamental type of matter; a chemical substance with a given set of properties, which cannot be broken down into substances with other properties. Chemists currently recognize 92 elements that occur in nature, as well as more than 20 others that have been artificially created.

The smallest component of an element that maintains the chemical properties of that element.

An “isotope” refers to any atom of a particular element with the same number of protons but a different number of neutrons, while a “radioisotope” is a specific type of isotope that is unstable and emits radiation due to its excess nuclear energy

An electrically charged atom or combination of atoms.