8.7A Seasons

In the summer, many people enjoy going to the beach. The photograph shows a beach in Argentina, which is located in the Southern Hemisphere. Which diagram shows the position of Earth when it is summer in Argentina?

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NGSS.MS-ESS1-1

The model shows Earth in several positions relative to the Sun. In which position is it Winter in North America?

• Position 1, Because North America receives the most direct sun.

• Position 2, Because North America is tilted toward the sun.

• Position 3, Because North America is tilted toward the sun.

• Position 4, Because North America is tilted away from the sun.

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A student wants to use a spinning basketball to model the day and night cycle on Earth. What should the student do in order to best model the cause of the day and night cycle?

• spin the ball in different directions

• Tilt the ball while it is spinning

• Paint one half of the ball black and the other white

• Shine a bright light on one side of the ball

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Which of these changes would likely occur if the rate of Earth's rotation on it's axis increased?

• The length of the seasons would be shorter.

• The length of the seasons would be longer.

• The length of a day would be shorter.

• The length of a day would be longer.

• No longer tilted on its axis

• Stopped rotating on its axis

• Took an additional month to orbit the Sun

• Revolved around the Sun in the opposite direction

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• Position 1
• Position 2
• Position 3
• Position 4

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• Equator

• North Pole

• Tropic of Cancer

• Tropic of Capricorn

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• Earth's orbit around the sun is not a perfect circle.

• North America has a larger landmass than South America.

• The moon has a greater pull on South America than North America.

• Earth's axis has a 23.5 degree tilt.

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NGSS.MS-ESS1-1

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