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Grade 3 unit 8 - Earth and Its Moon (How does Earth and Moon…
Grade 3 unit 8 - Earth and Its Moon
How does Earth and Moon move?
The earth rotates.
One full rotation takes 24 hours, or one full day.
From one sunrise to the next, we spin through the parts of the day - morning, daytime, evening, and night.
The earth revolves
.
Earth revolution takes about 365 days, or one year.
The seasons change as the earth moves around the sun.
The earth turns on its axis.
A line going through the earth from the north to the south pole.
Seasons
What are the different seasons?
Summer
Air is hot. some people wear hats and sunglasses.
Winter
The air can be cold, people play in the snow in winter.
Spring
Air is warm, people plant flowers in spring.
Fall
The air gets cooler, some animals gather food to store in winter.
Phases of the Moon
What are the different faces of the moon?
New moon
The lit side of a new moon faces away from earth. we see no moon at all.
Full moon
We see all of the moon's lit during full moon.
First quarter moon
A first-quarter moon looks like a half-circle and it is lit on the right side.
Third quarter moon
A third - quarter moon looks like a half-circle, but it is lit on the left side.
Crescent moon
we see the crescent moon just before and after the new moon.
Tides
What is the main cause of tide?
The pull of the moon's gravity.
People enjoy walking along the beach during low tide.
At most beaches, there are high tides and low tides every day.
