Summary Days are longer (more hours of daylight) in summer, shorter in winter There are greater differences in day length further away from the Equator There is not much change in day length near the Equator
Summary Days get LONGER (more minutes of daylight each day) from the Winter Solstice to the Summer Solstice Days get SHORTER (fewer minutes of daylight each day) from the Summer Solstice to the Winter Solstice Day length is about EQUAL everywhere in the world on the Autumnal & Vernal Equinox
Why does the length of day change? Because the Earth moves, or REVOLVES around the Sun This changes the way sunlight hits the Earth
Cycle # 3 The Seasons Winter Spring Summer Fall Winter Spring Summer http://www.getyourwebsitehere.com
Seasons are caused by The tilt of the Earth The position of Earth in space The difference in direct and indirect light from the Sun
Summary In winter: –Part of the Earth is tilted AWAY from the Sun –Part of the Earth gets INDIRECT energy from the Sun In summer –Part of the Earth is tilted TOWARD the Sun –Part of the Earth gets DIRECT energy from the Sun The position of the Earth in space determines which part of the planet is tilted toward the Sun.
Cycle # 4 Moon Phases New moon Waxing Crescent 1 st Quarter Waxing Gibbous Full Moon Waning Gibbous 3 rd Quarter Waning Crescent New Moon
The Moon A moon phase cycle (LUNAR CYCLE) lasts 29 1/2 days Moon phases are caused by the positions of the Moon, Sun, and Earth The moon also sees Earth phases