Chapter 1: the chemical world & scientific method

chemistry

study of molecules

matter

anything that occupies space and has mass

atoms

single element (ex. Hydrogen)

molecules

made up of atoms (ex water → H2O)

scientific method

to produce knowlege as the result of the senses. a way of learning that emphasizes observation and experimentation

observations

measuring/observing

hypotheses

tentative (not certain) interpretations of the observations

laws

predicts the results of certain initial conditions / doesn’t explain it / predicts what happens 

theory 

tries to provide the most logical explanation about why things happen as they do / proposes why

scientific law

a brief statement that synthesizes past observations and predicts future ones

scientific theory

well-established hypotheses, basis explanation

are the attachments that hold atoms together

chemical bonds

atoms and molecules are ____ that compose all common ____

tiny particles, matter

the ____ are bound together to form several different types of _____

atoms, molecules