Science Test 5-12-23 Flashcards
What are the two major ways Earth moves through space?
Roatation and Revolution
Define Rotation
the spinning of Earth on its axis
Define Revolution
is the movement of one object around another
What is an axis?
the imaginary line that passes through Earthś center and the North and South poles
What is an orbit?
Earthś path
What is a calendar?
a system of organizing time that defines the beginning, length, and divisions of a year
How many days are in a year?
365
How long does it take for the earth to revolve around the sun?
365.25
Why do we have leap year?
we have a leap year because the earth actually takes 365.25 days to revolve
Why do we have seasons?
Earths tilt
What is the difference between the June solstice, December solstice, March equinox, and September equinox?
June solstice in the Northern Hemisphere: summer; winter in Southern Hemisphere
How many days are in a leap year?
366
What month is the leap year day applied to?
February
How many hours does it take earth to rotate at once?
24 hours
Earthś orbit takes exactly how long to go around the sun?
365 1/4 days