The Sun
Lightning
The Moon
Volcanoes
Plants using sunlight for photosynthesis
Solar panels converting sunlight to electricity
Burning coal for heat
Earthquakes generating heat underground
The Sun emits energy in the form of sunlight.
Sunlight travels through space to Earth.
The Earth's tilt affects how much sunlight different areas receive.
Seasons are caused by changes in sunlight distribution.
Solar Energy
Earth's tilted axis
Earth's distance from the Sun
Earth's magnetic field
Earth's speed of rotation
Summer in the Northern Hemisphere -> Earth tilted toward the Sun
Winter in the Northern Hemisphere -> Earth tilted away from the Sun
Spring -> Equinox (equal day and night)
Fall -> Equinox (equal day and night)
Equator
North Pole
South Pole
Tropic of Cancer
365 days
1,000 days
100 days
720 days