Notes Section 2.2: States of Matter Matter and Energy.
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Transcript of Notes Section 2.2: States of Matter Matter and Energy.
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Notes
Section 2.2: States of Matter
Matter and Energy
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What are the 4 states of Matter?
•Solid•Liquid•Gas•Plasma
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The 3 States of Matter: Characteristics
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How do you change a state of matter?
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Melting•The process by which a solid becomes a liquid.
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Molecular Movement of Melting
SOLID LIQUID
Particles are
vibrating
Particles break loose and slide
past one another.
Heat gives particles ENERGY
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Melting Point•The lowest temperature at which a substance begins to melt.
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Melting PointsNitrogen
-345.82 F
Oxygen -361.12 F
Iron 2795.0 F
Carbon 6332.0 F
Helium -457.6 F
Sodium 207.9 F
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FreezingThe process by which a liquid becomes a solid.
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Molecular Movement of Freezing
SOLIDLIQUID
The heat leaves…and the energy from the particles decreases…creating a solid
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Are these items frozen?
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Freezing Point
•The temperature at which a specific liquid becomes a solid.
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Time to Think!
• What is the relationship between a substance’s melting point and freezing point?
• They are the same temperature!
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Evaporation•The process by which a liquid becomes a gas.
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Molecular Movement of Evaporation
Add heat to a liquid…
…and get a gas
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Word Study•The root of the word evaporation is ____________, a Latin word meaning _____________________.
vapor
steam
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Sublimation•The process
by which a solid changes directly to a gas.
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Boiling•The process by which a liquid becomes a gas and produces bubbles.
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Molecular Movement of Boiling
Why does the
liquid in the first
picture
evaporate when
no heat is
added?
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Boiling Point
•The temperature at which a substance changes from its liquid state to its gas state.
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Condensation
• The process by which a gas changes its state to become a liquid.
Beads of water that have condensed from the surrounding air.
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Molecular Movement of Condensation
LIQUID
GAS
The heat leaves… and the energy from the particles decreases…creating a liquid
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Word Study
•The root of the word condensation is ______________, which comes from a Latin word meaning ____________________.
condense
to thicken
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02• Bullet Point• Bullet Point
– Sub Bullet
02
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031st Qtr2nd Qtr3rd Qtr4th Qtr
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04• Text and lines are
like this• Hyperlinks like this• Visited hyperlinks
like this
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