Chapter 10 lesson 1 reading questions

What is an example of a physical change?

• Burning wood

• Sharpening a pencil

• Rusting iron

• Baking a cake

What happens to particles in a solid when it gains enough heat?

• They move slower and form a gas

• They move too fast to stay together and form a liquid

• They move faster and stay together

• They stop moving

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What is sublimation?

• Change from solid to gas

• Change from gas to solid

• Change from liquid to solid

• Change from gas to liquid

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Why is ice less dense than liquid water?

• Water molecules move closer together before freezing

• Water molecules move farther apart and line up in a solid arrangement

• Water molecules become heavier when frozen

• Water molecules lose energy and sink

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NGSS.MS-PS3-4

What is the boiling point of water?

• 100°C

• 50°C

• 0°C

• 212°C

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What is thermal expansion?

• Decrease in volume due to heat

• Increase in volume due to heat

• Change in state due to heat

• Loss of heat causing contraction

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NGSS.MS-PS1-4

What happens during evaporation?

• Liquid turns to solid

• Solid turns to gas

• Liquid turns to gas below boiling point

• Gas turns to liquid

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What is the melting point of water?

• 100°C

• 32°F

• 0°C

• 212°F

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What is the process called when a gas turns into a liquid?

• Freezing

• Sublimation

• Condensation

• Evaporation

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What is the effect of removing heat from a gas?

• It sublimes

• It condenses into a liquid

• It becomes a solid

• It expands

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NGSS.MS-PS1-4