Earth Science Flashcards
What is the order of the planets?
Mercury,Venus,Earth,Mars,jupiter,Saturn,Uranus,Neptune
What model of the universe shows that the earth is in the centre and everything else orbits around it?
Geocentric
What model of the universe is correct?
Helliocentric
What model of the universe shows that the sun is teh centre and everything else orbits it?
Helliocentric
Is Spring Equinox or Solstice?
Equinox
What does Equinox mean?
Time or date that the sun crosses the celestial equator
Is summer solsitice of equinox?
Solstice
What does solstice mean?
the time or date (twice each year) at which the sun reaches its maximum or minimum declination, marked by the longest and shortest days (about 21 June and 22 December).
Is Autumn Equinox or Solstice
Equinox
Is winter solstice or equinox?
Solstice
How long does it take for the earth to rotate once on its axis?
24 Hours
How long does it take for the moon to orbit the earth once?
28 Days
How long does it take for the earth to orbit the sun once?
365 days (1 year)
A ship going out to sea goes out of sight
The Earth is a sphere
Why do we have day and night?
The earth spins on its axis
Why do we have summer and winter?
The earth orbits the sun and the earths axis is tilted
Why does Venus take less time to orbit the sun than earth
It is closer
What is smaller a hubble telescope or the earth?
Hubble Telescope
What is bigger the earth or the sun?
Sun
Why do stars look smaller than the sun even though they are bigger?
They are more futher away
The weight of an astronaut on the moon is half or double the weight of an astronaut on the Earth?
Half
The mass of an astronaut on the moon is half or double the mass of an astronaut on the Earth?
Double
