Surface and Atmosphere
Density and Mass
Flights on Mercury
Mercury at a glance
Facts About Mercury
100
Mercury surface appears to be much like __________.
What is the moon?
100
Mercury's density is slightly less than our planet.
What is Earth?
100
The United States Mariner 10 became the first to reach what?
What is the only spacecraft to reach Mercury?
100
88 earth days
What is length of year?
100
Mercury is the second closest from this planet.
What is Venus?
200
It reflects about___________ percent sunlight.
What is 6 %
200
An object that weights 100 pounds on Earth would weigh what on Mercury.
What is 38 pounds on Mercury?
200
March 29/1974, Sept24/1974, March 16/1975
What are the dates that spacecraft took the Photographs of Mercury?
200
59 earth days
What is Rotation period?
200
This tool is used for seeing Mercury.
What is telescope?
300
Mercury doesn't have enough ____________ to stop meteorites.
What is atmosphere?
300
Mercury is smaller then the earth and therefore has less__?
What is Mass?
300
__________ became the first spacecraft to study two planets.
What is Mariner 10?
300
Sodium, helium, hydrogen, oxygen
What is Atmosphere?
300
Mercury appears as a dot against this.
What is the sun?
400
This planet is covered by a thin layer of minerals.
What is Mercury?
400
Mercury smaller mass makes its ________ only about a third as strong as Earth.
What is force of gravity?
400
The ________ photographed and made scientific measurements of Venus while traveling to Mercury.
What is Probe?
400
3,031 mile
What is the diameter of Mercury?
400
Mercury was named after these people.
What is the ancient Romans?
500
Mercury's interior appears to resemble that of this planet.
What is Earth?
500
This planet is smaller than earth.
What is Mercury?
500
Venus' gravity pulled on the __________ causing it to move faster.
What is spacecraft?
500
Zero
What is the number of satellites?
500
Mercury travels around the sun this number days.
What is every 88 earth days?
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