Vocab Quiz 2 Environmental Chemistry

Testable explanation for an observation

• hypothesis

• theory

• law

• guess

A force that holds two atoms together

• chemical bond

• gravitational force

• magnetic attraction

• nuclear force

A process in which one or more atoms of a substance rearrange to form one or more new substances

• chemical reaction

• physical change

• nuclear fusion

• evaporation

Smallest particle of a single element

• atom

• molecule

• compound

• cell

Positively charged subatomic particle in the nucleus of an atom

• proton

• electron

• neutron

• positron

Principles or standards we hold important

• values

• rules

• habits

• preferences

Procedure for testing a hypothesis under controlled conditions

• experiment

• observation

• survey

• interview

A substance with a high number of hydronium ions when dissolved in water

• acid

• base

• salt

• neutral compound

The factor changing within the experiment

• independent variable

• dependent variable

• control variable

• constant

The outcome variable to be measured

• dependent variable

• independent variable

• control variable

• extraneous variable