THIS IS FROM LESSON 5 in Student Worktext
Activating Strategy- “Engage Your Brain” page 65
Complete #1-2 individually at your seat.
Active Reading on Page 65
How is the word definite used in the sentence?
Answer: constant,
How is the word occupy used?
Answer: to take up
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Lesson Vocabulary
Solid
Liquid
Gas
2
Kinetic Theory of Matter: How much particles
move and how often they bump into each other
determine the state of matter of the substance .
A Solid
1) has a definite volume and shape.
2) Its particles are packed together to form a
regular pattern.
3) For most substances, the particles in a solid
are closer together than in a liquid.
3
#5) Describe: How are particles in a solid like
people sitting in a movie theatre?
People in a movie theatre are sitting in their seats
moving only slightly.
Particles in a solid are closely locked in position
and can only vibrate in place
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DO Now 10-9-14
 With your table group, discuss the
characteristics of a solid. I will be asking you
to tell me something your group talked
about.
5
Liquid – a substance that has a definite volume
but not a definite shape.
A liquid has 1) more kinetic energy than particles
in a solid do.
2) The Particles are close together but not as
close as they are in a solid.
3) Particles in a liquid are not fixed in place and
can move from one place to another.
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#6 Describe- How are particles in a liquid like
people in a movie theatre lobby?
People in the lobby can move around freely. Their
motion is limited by the people around them.
Particles in a liquid can slide past each other.
7
Gases- they do not have a definite volume
or shape.
1) A substance in a gaseous state has particles
with the most kinetic energy of the three
states of matter.
2) There is much more space between gas
particles that there is for solids and gases.
3) The space between gas particles can increase
with changes in temperature.
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#7 Page 67
Describe – How are particles in a gas like
people outside of a movie theatre?
1) People outside are spread far apart and
can move feely.
2) Particles in a gas can move freely.
3) The particles have more space between
them.
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Solids have a definite shape and volume.
#8 Identify word or phrases that describe the
properties of solids, liquids, and gases.
1) The castle, like all solid substances, has a
definite shape and volume.
2) The particles in a solid are in fixed positions and
are close together.
3) A solid can not easily change shape or volume.
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Liquids have a definite volume but can
change shape.
1) Like water, all liquids have a definite volume but no
definite shape.
2) The particles in a liquid are close together but they
are not tightly attached to each other.
3) Particles in liquids can slide past one another and as
a result, liquids can flow.
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Gases can change shape and volume.
1) Gases do not have a definite volume or shape.
2) The particles in a gas are very far apart.
3) The amount of space between the particles in
a gas can change more easily.
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Visualize It!!!!
With your table group, answer #10 on page 69
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Something to THINK ABOUT !!!
How would the different states of matter change if the
contents of the fishbowl would be transferred to a much
bigger rectangular aquarium?
On the half sheet of paper, tell me how all three states of
matter would change.
1) Solids
2) Liquids
3) Gases
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1) The solids in the fishbowl would not change
at all if they were placed in a larger
rectangular aquarium.
2) The liquid (water) would take the shape of
the new container and would not fill the
container.
3) The gas (air bubbles) might spread out more.
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THE MOTION OF THE PARTICLES CHANGES page 70
1) The process by which a solid becomes of liquid
is know as melting.
2) As the temperature of a liquid is lowered its
particles lose energy and become as solid. This
is known as freezing.
3) When substances lose or gain energy, one of two
things can happen to the substance: its
temperature can change or its state can change.
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Visual Summary- Pages 72
15) False- solids are made of particles that are
locked in place so their volume will not change.
16) True- the particles in liquids are further apart
than solids so they can move more freely and flow.
17) True- as the particles spread out the volume of
gas increases.
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Lesson 1 Part 2 Review- Page 73
1) Solid -Answer A
2) Liquid- Answer C
3) Gas- Answer B
4) The kinetic theory of matter states that the motion of
particles in a substance determines its state of matter.
5)The temperature remains the same because once it starts
to change it maintains the same temperature until the
change has been completed.
Ex. Boiling water will be 100 degrees until all the liquid has
become a gas.
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Lesson Review continued- Page 73
6) You could put a gas in a larger container to
increase its volume.
7) No, the gas particles in the tank always move
freely and fill the volume of the tank.
8) The gas particles would escape into the
atmosphere.
9) In reality, real helium atoms are much smaller.
10) The vibration of all the particles is too small to
detect with the naked eye.
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