Earth's rotation
Presentation
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Science
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6th Grade
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Practice Problem
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Easy
WYETH PALMERO
Used 8+ times
FREE Resource
29 Slides • 15 Questions
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Classroom rules
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Let's watch!
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Open Ended
What can you say about the world's culture?
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Greeting with a twist!
Greet good morning/ night your classmates using the language of the world
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Poll
How did you feel greeting your classmates using a foreign language?
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Language is one of the most important parts of any culture.
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Open Ended
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EARTH'S ROTATION
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Lesson objectives:
1. Describe the effects of Earth’s rotation.
2. Start developing a short documentary video relevant for this week’s lesson.
3. Identify ways on how to promote respect to each and everyone’s culture and tradition.
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Multiple Choice
● Why does the sun rise at the east and set at the west?
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The sun does not move from east to west
It's actually because of the earth's rotation.
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Multiple Choice
● How does our planet rotate?
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Rotation
The movement of the Earth on its axis
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Multiple Choice
How long does it take for the earth to complete one rotation?
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1 Rotation period
= 1 day
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Earth is tilted while spinning on its on axis.
The direction of rotation is from west to east or counterclockwise.
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Multiple Choice
Why is the earth tilted?
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Tilted Earth
The main consensus is that it has to do with Earth’s formation along with the rest of the planets in the Solar system.
It looks like it probably collided with a another proto-planet and in the process it was tilted.
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Multiple Choice
● At what angle is the earth tilted?
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Earth 101
The Earth rotates around its axis at a rate of about 1,600 kilometers (1,000 miles) an hour.
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Thoughts to Ponder:
Why can't we feel that the Earth is rotating?
https://www.youtube.com/watch?v=0H7NLiaeIWQ
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Open Ended
Why can't we feel that the earth is rotating?
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The world is round and we turn around!
1. rotate normally
2. rotate faster
3. rotate slowly
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Poll
Which rotation did you feel perfectly fine?
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Effects of the Earth's rotation
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Day and Night
Earth rotating on its axis is the reason behind days and nights every 24 hours.
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Poll
Are you a night owl or an early bird kind of person?
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https://www.youtube.com/watch?v=xerrjjAyZs8&t=92s
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Open Ended
What ways can you do to show respect to someone's culture and tradition?
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Tides
Rotation causes tides, i.e. rise and fall of the sea level twice a day.
The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides.
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What Causes Tides? | NOAA SciJinks – All About Weather
You can open this webpage in a new tab.
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Shape of the Earth
The speed of the Earth’s rotation has affected the shape of the Earth. Because of the speed of rotation, a centrifugal force is created which leads to the flattening of the Earth at poles and bulging at the center.
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Multiple Choice
What is earth's shape?
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Wind system: Coriolis effect
When the earth rotates on its axis, wind cannot move in a straight line toward north and south from the equator.
A Coriolis force is generated. Under its influence, winds deflect to their right in the northern hemisphere and to their left in the southern hemisphere.
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Movement of the stars
The stars appear to move very slowly because of the earth's rotation.
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The moving stars
https://www.youtube.com/watch?v=HsJxGpDmJrQ
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Open Ended
There is one star that does not appear to move.
Clue: This star tells us where the north is.
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POLARIS
Also called as the northern star. It points directly above the earth's axis
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Sailors using stars to navigate it's way
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Open Ended
New things learned:
Describe the the effects of earth's rotation
Classroom rules
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