PS Chapter 1 Vocabulary

The pattern of investigation procedures

• scientific methods

• hypothesis

• experiment

Is a possible explanation for a problem.

• variable

• hypothesis

• constant

Tests the effect of one thing on another using a control.

• constant

• experiment

• scientific method

Is a quantity that can have more than a single value

• constant

• variable

• experiment

Its value changes according to the changes in the other variables.

• constant

• dependent variable

• independent variable

The variable changed to see how it will affect the dependent variable

• independent variable

• dependent variable

• constant

The factor that does not change

• independent variable

• constant

• dependent variable

Is the standard by which the test results can be compared

• constant

• control

This occurs when a scientist expectations change how the results are analyzed.

• technology

• bias

• scientific method

Represents an idea, event, or object to help people better understand.

• theory

• model

• bias