seasons moon phases. why do we have seasons? the tilt of the earth’s axis
TRANSCRIPT
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SeasonsMoon Phases
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Why do we have seasons?
The tilt of the Earth’s axis
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When the Southern Hemisphere is receiving the most concentrated sunlight, what season is it in the
Northern Hemisphere?
Winter
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Draw a picture that illustrates winter in the Northern
Hemisphere.
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What is a rotation and how long does it take the Earth to make 1
complete rotation?
Earth spinning on its axis (causes day and night)
1 rotation = 24 hours (1 day)
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Draw a picture illustrating all 4 seasons with the sun
in the middle
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What season is illustrated in the picture
below?
Summer
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What is a revolution and how long is 1 Earth
revolution?
Revolution = Earth moving around the sun
1 Revolution = 1 year (365 days)
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What could we change to decrease the length of day?
Increase the speed of the Earth’s rotation
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If the Northern Hemisphere is getting indirect sunlight and the days are shorter, what season is it in the southern
Hemisphere?
Summer
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Draw all 8 phases of the moon in order starting with the New
Moon:
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What does the word waxing mean and draw a picture
representing waxing.
Waxing = bigger, brighter (light on the
right)
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What is a spring tide? When does a spring tide
occur?
-Tide that has the BIGGEST change in tides
-Occurs at New & Full Moon
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During a new moon, what is the position of Earth, moon
and sun?
The moon is in between the Sun and the Earth
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Looking at the diagram below, how long does it
take to get from point 4 to point3?
3 weeks (21 days)
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Where is the sun located in the diagram below? How did you
know?
By moon #4; the sun goes next to the New
Moon
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Based on the phase of the moon on June 27 (as pictured below),
what phase of the moon would be shown on July 3?
Full Moon
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What causes the changes in the lunar
cycle?
The relative position of the moon, sun, and Earth
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In what shape does Earth orbit the sun??
Ellipse
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What percent of the Earth is lit up at any
time?
50%
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At what positions are we going to have the biggest change in
tidal range?
Positions 2 & 4
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What keeps Earth and the moon in orbit?
Gravity
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Draw a picture that represents the next 3 phases of the moon:
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What part of the Earth receives the most
direct light from the sun?
Equator
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Draw a diagram that represents a Spring
Tide
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At what position in the diagram below do we have a full moon? How did you
know?
Earth
1
2
3
4 Sun
Position 4 – it’s furthest from the sun
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