Aphelion and Perihelion
Grade 6•45 minutes
Learning Objective
I can define aphelion and perihelion and explain how they relate to Earth's orbit.
Practice Questions
This lesson includes 3 practice questions to reinforce learning.
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1. Define perihelion and aphelion in your own words.
2. Explain why it is winter in the Northern Hemisphere when Earth is closest to the sun (perihelion).
3. Describe how Earth's speed changes as it moves from aphelion to perihelion, and explain the scientific principle behind this change.
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