vocabulary
a long narrow groove that forms where?
channel
what causes the Moon phases?
the Moon orbiting the Earth while being illuminated by the Sun from a constant direction
can you touch liquid oxygen?
OF COURSE NOT! YOU WILL GET REALLY BAD FROSTBITE!
how long is a complete cycle?
a period.
which of the rocky planets is the largest?
earth
any planet with a solid surface such as earth or mars
rocky planet
how many days does the lunar cycle take?
29.5 days
what happens to liquid oxygen when it warms up?
it turns back to gas and expands 860 times its liquid volume.
what are all 8 Moon phases
New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, and Waning Crescent.
which planet is famous for having huge volcanoes a two small moons?
Mars
Molten rock is underground is called magma, but once it breaks the surface, it is known as this.
what is lava?
what is the difference between waxing and waning?
Waxing refers to the moon's illuminated surface area increasing, moving from a new moon to a full moon. Waning refers to the illuminated surface decreasing, moving from a full moon back to a new moon
how much oxygen does 1 liter of liquid oxygen produce?
expands to approximately 860 liters of oxygen gas.
why do we always see the same side of the Moon?
because it is tidally locked to Earth
what do you call the solid metallic center of a rocky planet?
inner core
this is the boundary between two air masses of different densities and temperatures.
what is front?
if a full moon occurs tonight, what time will the full moon rise tomorrow?
approximately 30 to 70 minutes later than it did tonight.
why does liquid oxygen sometimes float on water?
its rapid boiling on contact with water creates a surrounding gaseous oxygen vapor barrier, which reduces the overall density of the blob below that of water
why is time between new moons longer than the time it takes the Moon to orbit the earth?
Earth is simultaneously moving around the Sun.
why are the inner planets rocky while outer planets have a liquid texture?
the early Sun’s intense heat vaporized lighter elements and solar winds stripped away gases, leaving only metal and rock.
this term refers to the point in an orbit where a planet or satellite is closest to the body it is orbiting.
what is periapsis?
what specific extreme tidal effect happens only during a full or new moon?
Spring tides
this is the expansion ratio of liquid oxygen when it turns into gas at room temp.
what is 861 to 1?
why do the phases appear reversed in the southern hemisphere compared to the northern hemisphere?
viewers are oriented upside-down relative to those in the Northern Hemisphere.
can rocky planets be found outside our solar system?
Yes