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Chapter 2 Section 1

TermDefinition
Orbit The path one body makes as it circles around another
Revolution Circular motion
Axis An imaginary line running through Earth between the North and South poles
Rotation A complete turn
Changing seasons caused by... Earth's orbit and tilt
Summer happens when... A hemisphere is tilted towards the sun
Winter happens when... A hemisphere is tilted away from the sun
Spring Equinox March 21; sun over equator; days and nights equal
Summer Solstice June 21; sun is over Tropic of Cancer
Winter Solstice December 21; Sun is over Tropic of Capricorn
Low Latitudes Tropics; hot climate
Middle Latitudes Temperate Zones; seasons change
High Latitudes Polar zones; cold
Why are there standard time zones? The sunlight/time difference is just a few seconds, but it would be too confusing if each place had its own time.
Created by: wcabana