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Study
Particle Theory
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Number 2 shows a ___________.
liquid
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Which state of matter is this?
Solid
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Which state of matter has the weakest attractions between particles?
Gases
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What happens to particles when they get hotter?
They move faster
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Which liquid has the highest density in this photo?
Honey
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Which word means the power to do work?
Energy
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Which word means to move quickly back and forth? (think of a phone)
Vibrate
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You put an inflated balloon into the freezer? What will happen and why?
The balloon will deflate because the gas particles get colder and move less.
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What happens to particles when they get colder?
They move slower.
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A student added sugar to a cup of water and stirred it. The sugar disappeared. Why?
The sugar dissolved in the water.
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Which state of matter has particles that can move past each other?
Liquids
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True or False? Particles are always moving.
True
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What is the volume of the rock?
About 10 mL
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Which change of state is from a gas to a liquid?
Condensation
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Do the volume and shape of solids change?
No, they have a fixed volume and a fixed shape.
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Which state of matter has tightly-packed particles?
Solids
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All matter is made up of tiny _________.
particles
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What are the three states of matter?
Solid, liquid, gas
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Which state of matter is this?
Gas
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Which word means the amount of space that something takes up?
Volume
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Which change of state goes from a liquid to a gas?
Evaporation or boiling
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Which liquid has the lowest density in this photo?
Lamp oil
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Which state of matter is this?
Liquid
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At higher temperatures, the particles in an object ___________.
move faster
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