Env Science. Chapter 2 Review

The chance that something will happen

Models represented by maps or charts

Information gathered from using our senses

Guess as to what will happen if the hypothesis is correct

Group in an experiment that does receive the variable

The bell curve is often used to represent distribution

Repeating your experiment is never necessary.

Which is something scientist must think about?

Representations of objects or systems

Steps used by scientist worldwide to identify and answer questions is called the ____ method.

Procedure designed to test a hypothesis

Arrangement of individuals in a statistical population

Which is a part of the decision making model?

Which is a step in the scientific method?

Correlations are used when experimenting is impossible or unethical.

Associations between two or more events

Imagination and creativity are not a necessary skill for scientist.

Drawing conclusions from data helps you decide if your hypothesis was right or wrong.

Group in an experiment that doesn’t receive the variable

A hypothesis is based on things you already know.

Testable idea that leads to a scientific investigation

Group of individuals or events used to represent a population

Models that are 3 dimensional and can be touched

Adding data and dividing by the number of individuals (average)

Decision making models give you a process for making decisions.

The factor of interest or what is being tested in an experiment.

Probability of an unwanted outcome

Models that are verbal or graphical and explain how a system works.

Models that use equations to represent how a system works.

Information that scientist gather during an experiment

Collection and classification of data in the form of numbers

Data is often relayed in tables and graphs.