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| Chapter 7: The Sun and Earth |
| | Lesson 1: Day and Night |
| | Lesson 2: Seasons |
| |  | Chapter 7: Links |
| Chapter 8: Moon, Stars, and Planets |
| | Lesson 3: The Moon |
| | Lesson 4: The Moon Changes |
| | Lesson 5: Stars |
| | Lesson 6: Planets |
| | | Chapter 8: Links |
| |  | Science Newsroom: Constellations |
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