Chapter 1
The Chemical World
What Is Chemistry?


The science that deals with the materials of
the universe and the changes these materials
undergo.
The science that seeks to understand what
matter does by studying what atoms and
molecules do.
What Is Chemistry?

Everything is made of tiny pieces called
atoms and molecules.
Scientific Method

A process for trying to understand nature by
observing nature and the way it behaves, and
by conducting experiments to test our ideas.

Key characteristics of the scientific method
include Observation, formulation of
Hypotheses, Experimentation, and
formulation of Laws and Theories.
Scientific Method
Scientific Method
Applies to single
or small number
of events
Applies to all
events
Describes what
happens
observation
law
Explains why things
happen
hypothesis
theory
Summary of Topics: Chapter 1


What is Chemistry?
Scientific method