Change of Insulator?
State
Conductor?
State of
Matter
Huh?
100
Heat &
Temperature
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
When you put a liquid in the
freezer what will happen?
It will turn to a solid
What happens when a gas
loses energy?
It condenses to a liquid
What happens when a
liquid loses energy?
It freezes into a solid
What happens when a solid
gains energy?
It melts into a liquid
What happens when a liquid
gains energy?
It boils into a gas
At what temperature does water
freeze? (Celsius)
0 degrees Celsius
What is an insulator?
An insulator does not allow heat
to leave or cold to enter
What is a conductor?
Conductors are materials that
permit heat or electricity to flow
freely through touch.
What is endothermic?
Endothermic is when energy is
absorbed or taken in.
What is exothermic?
Exothermic is energy being
released
When a liquid freezes to a solid –
what energy transfer takes place?
Energy is released (it’s
exothermic to go from a liquid to
a solid). Energy is released from
the liquid to the air around it.
Is plastic an insulator or a
conductor? How do you know?
Plastic is an insulator. I know
this because a plastic spoon will
not allow an ice cube to melt
quickly or will not get hot when
placed in hot soup.
Is metal an insulator or a
conductor? How do you know?
Metal is a conductor. I know this
because the heat is transferred to
the spoon while in a hot bowl of
soup.
What is sublimation?
Going from a solid to a gas.
What is deposition?
Going from a gas to a solid.
List the changes of state that
show a decrease in kinetic
energy.
Deposition, freezing, condensation
List the changes of state that
show a increase in kinetic
energy.
Sublimation, melting, boiling
What is heat?
Heat is the transfer of energy.
What is temperature?
Temperature is the measure of
heat.
Which state of matter has the
most kinetic energy?
Which state of matter has the
least kinetic energy?
Most = gas
Least = solid
Why do the lines on the chart
plateau?
Because it takes time and energy to
change state
How has chemistry impacted people, society
and technology?
Through chemistry science has
created many useful items – like
plastics. Plastics make our lives
easier, warmer, cooler and better.
C
B
A
Where on this graph is the greatest
average kinetic energy located? Why?
The reaction requires energy for a
phase change to happen.
What will happen when a
substance is heated?
It will melt
What has the ability to change
the state of matter?
heat
Material
plastic
stainless steel
silver
wood
Observation
slightly warm
hot
very hot
not warm
100̊ C
1) After the spoons have been in the water for a couple of minutes, what
will the student most likely observe about the temperature of each
spoon?
2) Classify each
of the materials that the student is testing as a conductor
or an insulator.
3) Describe how heat transfer due to radiation could be used to affect this
system.
4) Identify and describe the type of heat transfer that occurs between the hot
water and the spoons.
1) The silver and stainless steel spoons will feel hot, the plastic
spoon will feel warm, and the wood spoon temperature will
not have changed; etc.)
2) insulators: plastic and wood; conductors: stainless steel and
silver
3) Radiation could come in the form of a heat source at some
distance away, such as a fire under the bowl
4) direct contact, or conduction