Transcript 7 cm 3

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It’s All
In the
Past
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Atom’s
Parts
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Table of
Stuff
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What’s
the
Matter?
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500
How
Dense Are
we?
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Team One
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Team Three
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Team Five
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Team Two
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Team Four
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Team Six
Who was the
first person
to propose
the atom?
Show Answer
Democritus
Back to Board
Describe one
historical idea
about matter that is
incorrect according
to the modern
atomic theory.
Show Answer
Matter is made of fire,
earth, and water.
Electrons zoom around
the nucleus like a solar
system.
Lots More
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How did
Democritus
describe
atoms?
Show Answer
When matter is broken
down into smaller and
smaller pieces, you
would come to a
particle that could not
be made smaller. They
were different shapes.
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How do
scientists know
matter is made
of particles?
Show Answer
Experiments
have
proven it
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The model of the
atom has changed
dramatically over
time. DESCRIBE our
current model of
the atom.
Show Answer
Nucleus that contain
protons and neutrons
and a cloud of
electrons that spin
quickly around the
nucleus. Mostly empty
space.
Back to Board
Write the charge
(positive, negative, and
neutral) of protons,
neutrons, and
electrons.
NO ABBREVIATIONS!!
Show Answer
Proton: Positive
Neutron: Neutral
Electron:
Negative
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Which of these attract
and repel?
1. Proton-proton
2. Proton-electron
3. Electron-electron
Write: 1. repel or attract
Show Answer
1.Repel
2.Attract
3.Repel
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If the Nucleus
is the size of a
blueberry or a
pea. How big is
the atom?
Show Answer
Size of a
football
stadium
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How many
electrons fit
on each
energy level?
Show Answer
2 in the first energy
level and 8 in the
following energy levels.
Metals can have 2 then
8 then 16 in their
energy levels.
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What makes
up the
majority of
an atom?
Show Answer
Empty
Space
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Write the atomic
number and atomic
mass
Show Answer
Atomic Number:
2
Atomic Mass:
4.002602
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How can we
determine
how many
protons an
element has?
Show Answer
Number of
protons is the
same as the
atomic
number.
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How many neutrons
does this element
have?
Show Answer
35
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How many electrons does this
element have in it’s outer energy
level?
Show Answer
7
Back to Board
What are two
ways that
elements
bond to each
other?
Show Answer
Opposites attract:
positive and
negative charge
Sharing electrons
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What state of
matter has atoms
that vibrate in
place without
moving past each
other?
Show Answer
Solid
Back to Board
What happens
to a helium
balloon when
you take it
outside in the
winter time?
Show Answer
It sinks; the
balloon seems to
deflate because
the molecules
move closer
together.
Back to Board
Explain what
happens to the
molecules in
the ball and
ring when it
was heated.
Show Answer
The molecules began
to move faster and
farther apart causing
the ball to expand so
that it no longer fit
inside of the ring.
Back to Board
Draw a picture of the
molecules in a liquid
solid and a gas at
room temperature.
Make sure to include
motion lines.
Show Answer
Back to Board
Why are the levels in
the thermometers at
different
levels even
though they
are at the
same
temperature?
Show Answer
Mercury has
a higher
boiling point
than alcohol.
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What is the
formula for
density?
Show Answer
Density=Mass/Volume
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How would you
find the volume
of an irregular
shaped item like
a rock?
Show Answer
Put it in water and
measure how much
the water rises.
Water Displacement
Method
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A rock is dropped into a
graduated cylinder with
the water level at 40
mL. The water level
rises to 47 mL. What is
the volume of the rock
3
in cm ?
Show Answer
7
3
cm
Back to Board
If you have a liquid
that has a volume
of 150 mL and
weighs 450 grams,
what is it’s density
3
in g/cm ?
Show Answer
3
3
g/cm
Back to Board
What is the density if the object
has a mass of 36 grams?
Show Answer
6
3
g/cm
Back to Board
Show Question
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What is the density of
this cube if it weighs
210 grams?
Show Answer
7
3
g/cm
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