WorksheetsMercury Venus
Total questions: 17
Worksheet time: 10mins
Which planet is the hottest?
Mars
Venus
Earth
Mercury
Which planet has the thinnest atmosphere?
Mars
Venus
Earth
Mercury
Which of the following characteristics is common to ALL FOUR planets in the inner solar system?
have one or two moons
have a solid rocky surface
have a thin, toxic, atmosphere
have the same orbit length around the sun
Which planet rotates in the opposite direction?
Mercury
Venus
Earth
Mars
Which planet has toxic clouds?
Mercury
Venus
Earth
Mars
Which planet is the only planet with liquid water?
Mercury
Venus
Earth
Mars
One year is only 88 earth days on this planet
Mercury
Venus
Earth
Mars
This planet has the densest composition overall.
Venus
Mercury
Mercury has a much larger ___ - compared to Earth's moon.
polar ice cap
or thicker crust
core
atmosphere
Today, all of the carbon dioxide (CO2) on Venus is located almost entirely in the
crust
mantle
atmosphere
oceans
Why can't astronomers directly study the surface of Venus?
the surface is just way too hot
the surface is permanently obscured by thick clouds
there is no surface of Venus
too many active volcanoes
One of the many discoveries of the recent MESSENGER space probe to Mercury include
active volcanoes & a shrinking core.
spider-shaped impact basins.
water ice at the poles (like the Moon).
strange alien bases on the far-side.
This spacecraft was the first to visit Mercury & map just over half of its surface.
Mariner
MESSENGER
Magellan
Veneras
Why is Venus so much hotter on average than Mercury - although Mercury is closer to the Sun?
the orbit of Venus takes it closer to the Sun sometimes
Venus' atmosphere is so thick that it traps the Sun's heat
Mercury has no atmosphere (to speak of)
because Mercury has a fairly substantial magnetic field
