3 DHS Reasons for the Seasons
Flashcards to help students understand that the changing position of the Earth's tilt is the reason for the differences in temperature and length of daylight that distinguish the seasons.
Terms in this set (17)
autumn day, usually around September 22, when day and night are of generally equal length.
an invisible line around which an object spins.
imaginary line around the Earth, another planet, or star running east-west, 0 degrees latitude.
half of a sphere, or ball-shaped object.
fixed point that, along with the South Pole, forms the axis on which the Earth spins.
path of one object around a more massive object.
period of the year distinguished by special climatic conditions.
light and heat from the sun.
half of the Earth between the South Pole and the Equator.
fixed point that, along with the North Pole, forms the axis on which the Earth spins.
day of the year with the most hours of sunlight, June 20 or 21 in the Northern Hemisphere and December 21 or 22 in the Southern Hemisphere.
a measure of kinetic energy measured in degrees by a thermometer with a numerical scale.
to lean or slant.
day, usually around March 21, when day and night are of generally equal length. Also called the spring equinox.
(December 22 in the Northern Hemisphere, June 22 in the Southern Hemisphere) longest night of the year and the beginning of winter.
tilt of the Earth's axis of rotation
Polaris (The North Star)
direction in which Earth's axis points