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15
×
Water going from liquid to gas represents:
A phase change.
Lower temperature.
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15
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Describe the process of melting and what happens to particles when a solid becomes a liquid.
A solid turning into a liquid, and particles gain energy.
It's turning a gas into a solid. Particles slow down.
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15
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A puddle disappears on a sunny day because of
Freezing.
Evaporation.
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15
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Why does this make your hands feel warm?
The heat from the campfire is transferred to your hands.
Your hands release heat energy.
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15
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When heat is transferred through direct contact of solids, it is:
Conduction.
Convection.
Radiation.
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eraser
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shark
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gift
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thief
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15
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When a liquid turns into a solid, it's called:
Evaporation.
Freezing.
Melting.
Freezing.
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trap
No points!
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shark
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rocket
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lifesaver
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thief
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25
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shark
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gift
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thief
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15
×
What is temperature, and how does it affect the movement of particles?
Temperature is a measure of the average speed of particles.
Temperature is a measure of the number of particles.
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15
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How does the movement of particles differ in solids, liquids, and gases?What is kinetic energy, and how is it related to the movement of particles?
It's the energy of motion and relates to how fast they move.
It's the measure of the number of particles in a substance.
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15
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When heat is transffered through gas or liquid particles, it is:
Radiation.
Conduction.
Convection.
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15
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This thermogram shows that:
The forehead and nose are the hottest spots on this face.
The forehead and chest are the hottest spots on this face.
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15
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How does the arrangement of particles differ in a gas compared to a solid or a liquid?
Particles in a gas are spread out and move freely.
Particles in a gas are closely packed together.
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15
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Select the difference between condensation and evaporation.
Condensation turns gas into liquids, not liquids into gas.
Condensation happens at 120°C, evaporation at 100° C.
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15
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Why does a metal spoon feel colder to touch than a wooden spoon at the same room temperature?
Because they have different capacities of transporting heat.
Because wood is hotter than metal.
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