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SOLIDS,
LIQUIDS, AND
GASES
OH MY!!!
By: Daja Dampeer and
Devonta Dickey
Chapter 3 Sections 1-4
SOLIDS
What makes a solid a
solid???
Has to have a definite
shape
b) Has to have a definite
volume
c) Has particles that are fixed
and tightly packed together
d) The particles vibrate or
move back and forth slowly
a)
THE TYPES OF SOLIDS
crystalline solids
examples: salt, sugar, and even snow
 are solids that are made up of crystals and has a
regular repeating pattern

amorphous solids
examples: plastics, rubber, and glass
 are solids that does not have a regular repeating
pattern, and becomes softer and change into a
new substances but does not melt

LIQUIDS
What makes a liquid a liquid?
a) Has to have a definite volume
b) Has NO definite shape of its own
c) Has particles that move freely which makes a
liquid a fluid
PROPERTIES OF
LIQUIDS
Surface tension
is the result of an inward pull among the
molecules of a liquid that brings the molecules on
the surface closer together
 Viscosity
is a liquid’s resistance to flowing (it depends on
the size and shape of its particles and attractions
between particles

GASES
What makes a gas a gas?
a)
Has NO definite shape or volume
b) Has particles that move freely and fills the
space of a room or container that is available
c) It is also known as a fluid.

CHANGES OF STATE
GAS BEHAVIOR
MEASURING GASES
length
Volume- The measurements used to
measure the volume of an object are:
centimeters (cm³), milliliters (mL),
Liter (L), and other units. Formula to
find volume is length x width x height.
 Temperature-the measure of the
average energy of random motion of
the particles of a substance.
 Pressure- the number of times particles
hit the surface of a substance.
 The formula to find the pressure of an
object is: Pressure: Force/Area

Square
width
height
BOYLE’S LAW

Boyle’s Law
When a pressure of a gas at constant
temperature is increased, the volume
of the gas decreases. When the
pressure is decreased the volume
increases.
Boyle’s Law
pressure goes up
down
volume goes
pressure goes down
volume goes up
CHARLES’S LAW

Charles’s Law
When temperature of a gas is increased
at constant pressure, its volume
increases. When the temperature of a
gas is decreased at constant pressure,
its volume decreases.
Temperature increases
Volume increases
Temperature decreases Volume decreased
GRAPHING GAS
BEHAVIOR

Graph
- A diagram that tells how two variables, or factors
change, and are related.
A graph consist of a y-axis and an x-axis. The yaxis is labeled by the responding variable. The x-axis
is labeled by the independent variable.
GRAPHING GAS BEHAVIOR

The Charles’s Law always creates a graph that is directly
proportional.
Directly proportional- a term that is used to describe the
relationship between two variables whose graph is a
straight line passing through the origin (0,0).

The Boyle’s Law always creates a graph that is vary
inversely.
Vary inversely- a graph of two variables that forms a curve.
WORDS TO KNOW
a)
b)
c)
d)
e)
f)
Solid
Liquid
Gas
Pressure
Boyle’s Law
Charles’s Law
GLOSSARY
1. Solid- has definite shape and volume and has particles that
are packed closely together
2. Liquid- has no definite shape but has definite volume and has
particles that move easily and freely which makes it a fluid
3. Gas- has no definite shape or volume and particles move freely
which is also a fluid
4. Pressure-the force of a gas’s outward push divided by the area
of the walls of the container
5. Boyle’s Law- pressure goes up
volume goes down
pressure goes down
6.Charles’s Law- temperature
temperature
volume goes up
volume
volume
THE END!!!