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Warm Up: our MOON
COPY THIS IN your spiral:
•crescent - the phases where the moon is less than half light.
•gibbous – the phases where the moon is more than half light
•waxing- essentially means "growing" light
•waning- means "shrinking“ light
Tides and Moon
Phases
Tides
• daily rise and fall of Earth’s waters on the shorelines
• Caused by the gravitational pull between the Earth, moon, and Sun.
http://studyjams.scholastic.com/studyjams/jams/science/weather-and-climate/tides.htm
Two Types of Tides
• Spring Tides
–Twice a month, the Sun and moon are lined up.–This combined gravity creates the
STRONGEST pull on the water.
Spring tides:All in a LINE
All in a LINE
Two Types of Tides
•Neap Tides
–Twice a month, the Sun and moon are at right angles.–combined gravity creates the WEAKEST
pull on the water.
The SUN and Earth are in line but the MOON is on a right angle!
Moon
• is kept in orbit by Earth’s gravity.• is visible because it reflects sunlight.• does NOT give off its own light.
Moon Phases
• Earth revolves around the Sun (365 ¼ days) Moon revolves around the Earth (28 days)
• The phase of the moon you see depends on how much of the sunlit side of the moon is facing Earth.
http://stardate.org/nightsky/moon
Time for Bill Nye!
http://studyjams.scholastic.com/studyjams/jams/science/solar-system/moon.htm
Let’s make a moon spinner!