Physical Science Unit 1

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What is a solid?

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1

What is a solid?

A form of matter that has a definite shape and volume. Particles do not move as freely as in other states.

<p>A form of matter that has a definite shape and volume. Particles do not move as freely as in other states.</p>
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2

What is a gas?

A state of matter with no definite shape or volume and fills its container.

<p>A state of matter with no definite shape or volume and fills its container.</p>
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3

What is a liquid?

A state of matter that has a definite volume but no definite shape. Particles move more freely than in solids.

<p>A state of matter that has a definite volume but no definite shape. Particles move more freely than in solids.</p>
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4

What will happen to the mass of water or ice in a sealed cup left for 3 days?

mass will not change

<p>mass will not change</p>
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5

What will happen to the mass of water or ice in an unsealed cup left for 3 days?

mass will be lower due to evaporation

<p>mass will be lower due to evaporation</p>
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6

What do metals such as copper, gold, silver and iron have in common?

good electrical conductors

<p>good electrical conductors</p>
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7

What color is copper?

orange-gold color

<p>orange-gold color</p>
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8

What happens when water boils?

some of the water becomes gas

<p>some of the water becomes gas</p>
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9

What is the melting point?

the temperature at which water changes from a solid to a liquid

<p>the temperature at which water changes from a solid to a liquid</p>
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10

What is matter?

anything that has mass and takes up space

<p>anything that has mass and takes up space</p>
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11

What is mass?

a measure of the amount of stuff in an object

<p>a measure of the amount of stuff in an object</p>
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12

What happens when solids dissolve in a liquid?

particles become evenly mixed in liquid

<p>particles become evenly mixed in liquid</p>
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13

How do scientists test the hardness of material?

they scratch it

<p>they scratch it</p>
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14

Copper is

an electrical conductor

<p>an electrical conductor</p>
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15

What are two properties of iron?

magnetism and electrical conductivity

<p>magnetism and electrical conductivity</p>
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