What does rotate mean? Give an example.
Rotate means spin in place. Earth rotates on
its axis, or a top rotates when it spins.
What does revolve mean? Give an example.
Revolve means orbit, or circle around. Earth
revolves around the sun, and the moon
revolves around earth.
How long does it take earth to orbit around
the sun?
The earth orbits the sun in about 365 ¼ days,
or 52 weeks, or 1 year.
How long does it take earth to make 1 full
rotation on its axis?
It takes 24 hours, or 1 full day.
Name the four seasons in order starting with
winter.
Winter, spring, summer, fall (or autumn)
During which season are the days shortest and
nights longest?
Winter
During which season are the nights shortest
and the days longest?
Summer
What is the time called when day and night
are equal?
Equinox. Vernal Equinox and Autumnal
Equinox
What causes day and night?
What causes seasons?
The earth rotating (spinning) on its axis.
The 23.5° tilt of the earth while it revolves
around the sun.
What season do we experience in the
Northern Hemisphere when we’re tilted
towards the sun?
What season does the Southern Hemisphere
experience when they’re tilted away from the
sun?
What seasons will there be when the sun is
shining equally in both Northern and Southern
Hemispheres?
We experience summer when we’re tilting
towards the sun.
The Southern Hemisphere experiences winter
when they’re tilting away from the sun.
Spring and Fall.
What season does the Northern Hemisphere
have when the Southern Hemisphere has fall?
The Northern Hemisphere has spring when the
Southern Hemisphere has fall.
Why does a globe lean sideways?
To demonstrate the tilt of the earth’s axis.
When does the Northern Hemisphere have
winter?
Winter for the Northern Hemisphere is
December to March.
When does the Southern Hemisphere have
winter?
Winter for the Southern Hemisphere is June to
September, opposite of the Northern
Hemisphere.
Where and when would you find almost 24
hours of daylight?
Above the Arctic Circle or below the Antarctic
Circle during summer. Remember Tim trying
to sleep during the “Seasons” BrainPop movie.
Moon & Earth Cycles
Study Guide