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