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1
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Mercury is very similar in appearance to the _____.
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4
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The Roman counterpart to Mercury.
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6
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Mercury is the ____ planet to the Sun.
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10
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Mercury has a very ____ surface.
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12
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Craters and famous features are named after deceased ____, musicians, or authors.
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13
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You can jump ____ on Mercury than on Earth.
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14
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Mercury has no atmosphere but an _____.
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15
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Mercury is called a rocky or ______ planet.
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16
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The core of Mercury is made up of this.
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18
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The name of the main mission that went to Mercury.
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20
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Mercury has had this number of missions.
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2
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The chemicals found in the exosphere are _____, sodium, hydrogen, helium, and potassium.
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3
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If the gravitational compression is not considered, Mercury is the ____ planet.
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5
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Mercury's number of moons.
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7
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You weigh ____ on Mercury than on Earth.
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8
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The first people to document Mercury.
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9
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Mercury has ____ days.
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11
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What was recently discovered on Mercury.
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17
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Mercury has ___ real atmosphere.
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19
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Mercury has ____ years.
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