Movement of the Earth and planets Flashcards
How can you find east?
look towards the place where the sun comes up in the morning
how can you find north?
stretch out your arms so that your right hand point east and your left hand points west.
Then north is the direction in front of you.
why does it look as though the sun moves across the sky when we know that the sun does not move?
the sun seems to move because earth is rotating (turning). The sun seems to move from East to West, but that is because the earth is rotating from west to east.
where is the sun, when it is nighttime where we are?
the sun is on the other side of the world
the earth spins on its own axes. What term refers to this?
rotate / rotation
the earth and the other planets travel in an orbit around the sun. What term refers to this?
revolve / revolution
how many hours does it take the earth to rotate once?
24 hours
how many days does it take the earth to revolve once around the sun?
365.25 days
do you thin mars would take more earth days to revolve around the sun than earth does? Why?
yes, because it is further away and therefor has a longer/bigger pathway.
why do you think we have a leap year every 4 years and not every 3-5 years?
this is because it is 365.25 days. As our calender only has 365 days, four quarters make up an extra day every 4 years.
