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Ch. 24.2 Seasons
Seasonal Changes in Radiation
| Question | Answer |
|---|---|
| Rotation | The time it takes for Earth to spin once on its axis; a day; 24 hours |
| Revolution | The time it takes for a planet to complete an orbit around the sun; 1 year |
| Tropic of Cancer | 23.5 North latitude |
| Tropic of Capricorn | 23.5 South latitude |
| Equator | 0 degrees latitude; the sun's perpendicular rays hit here on equinoxes. |
| Tropics | The area of Earth between the Tropic of Cancer and Capricorn; Warm temperatures all year; no seasons. |
| Temperate Zone | "Mid-latitudes"; The area of Earth between 23.5 - 66.5 North and South; Experiences 4 seasons |
| Polar Zone | The area between 66.5 - 90 North and South latitude |
| What is Earth's axial tilt? | 23.5 degrees |
| Summer Solstice | 1st day of summer; June 21; Sun is directly above 23.5 N. |
| Winter Solstice | 1st day of winter; December 21; Sun is directly above 23.5 S. |
| Vernal Equinox | 1st day of spring; March 21; Sun is directly above the equator. |
| Autumnal Equinox | 1st day of autumn or fall; September 23; Sun is directly above the equator. |
| What is the longest day of the year? | Summer solstice, June 21st |
| What is the shortest day of the year? | Winter solstice, December 21st |
| During the seasons of __________ and ____________, the sun's perpendicular rays are in the northern hemisphere. | Spring and Summer |
| During the seasons of _________ and _________, the sun's perpendicular rays are in the southern hemisphere. | Autumn and Winter |
| When it is summer in the northern hemisphere, it is _______________ in the southern hemisphere. | Winter |
| If Earth was not tilted, this location would receive maximum solar radiation all year: _________________. | the equator |
Created by:
burnsie
on 2011-02-22