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Classifying Different
Forms of Matter
Name: ________________________
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Lesson 1: Classifying Different Forms of Matter Notes
Key Questions of this Lesson:
 How is melting different from boiling?
 How is condensation different from evaporation?
 What is the boiling point of water?
 What is the freezing point of water?
Key Vocabulary:
 Condensation
 Boiling
 Evaporation
 Boiling
Quick Science Review
What are the three states of matter?
1. ________________________
2. ________________________
3. ________________________
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Melting
Melting happens when a ______________ is heated long enough to
become a ______________.
5. When ice melts it changes to ______________.
6. Water freezes at 0°C and 32°F
7. °C means Celsius, and Celsius is ______________
8. °F means Fahrenheit, and Fahrenheit is ______________
Freezing
9. Freezing happens when a liquid cools enough to form a
______________.
10. When water freezes it changes into __________________.
Evaporation
Evaporation happens when _______________ change to
_______________ very _____________ at the surface of the
liquid as _________________ is added from their
surroundings.
Boiling
11. Boiling is a change from a liquid to a ______________.
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12. When you boil liquid, the heat causes bubbles of gas to form in liquid.
13. Water boils at 100°C or 212°F
Condensation
Happens when a gas is cooled enough (when heat is taken away) to
form a liquid.
Example 1: When a glass of ice water forms liquid water on the outside of the glass on a
hot, humid day.
Example 2: When the bathroom mirror fogs with droplets of water formed after a hot
shower, cooling and changing to liquid drops on the mirror.
The water vapor in the air condenses on the cool glass.
Evaporation and Condensation are very similar and
different:
14.
Liquid water changes to water vapor
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15.
Boiling involves heat, evaporation can happen even
when it is cold
Heat, Temperature, and Energy Video Notes
16.
energy inside of matter is called
____________________
17.
The flow of thermal energy from one place to another
is called ______________
18.
Heat always flows from something warmer to
something colder.
19.
When heat is added to a substance the molecules move
____________.
20.
When heat is taken away from a substance the
molecules ______________.
21.
Heat energy can be converted into other forms of
energy, and other forms of energy can be converted into
heat energy.
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22.
When most substances lose heat, they
______________ because their molecules are less excited
and they move closer together.
23.
The freezing point of water is _________ degrees
Fahrenheit
24.
The boiling point is ________ degrees.
25.
A thermometer measures temperature, not
____________.
26.
Temperature and heat are different in important ways:
a. Temperature is a measure of how fast the molecules
in a substance are moving.
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27.
Which do you think has a higher temperature, and
why? The flame of a candle or a radiator?
Record answer
here:______________________________________________
__________________________________________________
__________________________________________________
28.
Conduction happens when heat energy flows from one
molecule to _______________ as they collide.
29.
Different substances that do not conduct heat well are:
a. Copper
b. Aluminum
c. Steel and
d. ____________
30.
Poor conductors like wood are known as
______________.
31.
Liquids are also _____________ conductors.
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Convection
32.
Convection is the flow of _____________ that occurs
in a _____________ or ______________.
33.
The _____________ is the ultimate source of most of
the heat energy on earth.
34.
There is one way that heat can flow from one place to
another, even though empty space. This is known as
____________.
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Key Questions of this Lesson:
 How can you prevent heat from moving from one object to
another?
 What are examples of conductors?
 What are examples of insulators?
Key Vocabulary:
• Conductors
• Insulators
• Rubbing
• Burning
• Using Electricity
Conductors
Important information:
Heat either moves easily in some
materials called conductors or not so
easily in other materials called
insulators.
1. Some materials allow heat to move easily through them
and from one object to another through direct contact.
These materials are called _____________________.
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2. For example- if a metal spoon is put in hot water, it will
become warmer. Metal objects are ____________
conductors of heat, and they get warmer
3. Some colors are good conductors of heat!
4. Black, navy blue, and other dark colors take in heat
quickly.
5. Wearing white or light colored clothing outside helps you
stay cool on hot days!
Insulators
6. Some materials do not allow heat to move easily through
them and are called _______________.
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7. For example- if wooden and plastic spoons are put in hot
water, they do not become warmer. These materials do not
allow heat to move easily
through them.
8. Plastic and wood materials are
insulators, and they
_______________ get warmer.
Rubbing
9. When objects are rubbed
together, ____________ is
produced.
10.
Example: When hands are
rubbed together, they get warmer on a cold day
Burning
11.
When materials are
burned in a fire, heat can be
produced
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For example, when wood or candles are burned, they
produce heat
Using Electricity
13.
When ________________ is used, heat can
be produced.
14.
For example, when electricity is used in
light bulbs, heaters, stoves, toasters, or ovens,
things get warmer.
More Heat, Conductors, Insulators
15.
Many things give off heat. Heat is sometimes very
hot!
16.
All heat is ___________________.
17.
Heat can move from one object to another or from one
molecule to another through the process of
__________________.
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Molecules
18.
A molecule is like a tiny building block that makes up
everything around us.
19.
We _____________ see them with our eyes.
20.
As one molecule is heated it begins to move quickly.
21.
When it does it passes some of its heat energy to other
molecules around it.
22.
When this happens, all the molecules of an object
move heat from one to another, until they are all hot.
23.
Some materials (objects) get warmer faster than
others.
24.
____________ is a good conductor because it takes
heat in quickly.
25.
Copper becomes hot quickly, so it is a
__________________.
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