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Questions for Discussion: Earth in Motion: Seasons
- Explain how the motion of Earth causes night and day.
- How would you explain why North America is warmer in summer and colder in winter? (Remember, Earth is about the same distance from the Sun all year long — seasons are not caused by Earth's distance from the Sun.)
- Why is it winter in the southern hemisphere when it is summer in the northern hemisphere?
- What are the seasons like where you live? How are seasons different in other parts of the world?
