Flashcards in Seasons Deck (22)
The Earth is a _____.
Only ____ ____ of Earth is illuminated at a time.
What causes day and night on Earth?
The rotation of the Earth on its axis.
The rotation of the Earth cause two things. Name these.
Day and night.
To what degree is the earths axis tilted at to the orbital plane?
The Earths axis remains ____ to its previous position.
The Earth rotates/revolves around the sun?
In summer the days are ____ and the nights are..?
Longer and shorter
In winter the days are ____ and the nights are..?
Shorter and longer
Define a solstice.
The dates on which the Earth’s axis is tilts most towards the sun or most away from the sun. The summer solstice is the longest day and the shortest night, while at the winter solstice the day is the shortest of the year and then night is the longest.
Define an equinox and the dates on which they happen.
The equinoxes are dates when the Earth axis is not tilted either towards or away from the sun. This happens on 21/22 March and 21/22 September. The length of day and night will be equal everywhere in the world: twelve hours of day and twelve hours of night. On 21/22 March, the autumnal equinox in the southern hemisphere, and the spring equinox in the northern hemisphere occurs.
How does being located near the Equator effect the temperature of a place?
Places located near or on the Equator do not vary in temperature, they are constant. The days are about the same length all year.
People closer to the Poles have much _________ temperatures throughout the year.
Less constant, more varying
Longs summer days help keep areas closer to the pole ___.
When is the summer solstice in the northern hemisphere?
When is the winter solstice in the northern hemisphere?
When is the summer solstice in the southern hemisphere?
When is the winter solstice in the southern hemisphere?
When is the autumn equinox in the Southern Hemisphere?
When is the autumn equinox in the northern Hemisphere?
When is the spring equinox in the Southern Hemisphere?