Junior one science-moon phase

1.A

2.C

3. Moon phase change and Earth rotation period.

4. Lunar calendar

5.24

6. Gregorian calendar component

July 29, 53 days

8. Wang Shuo

9. Junior one

10. 15

1 1. 16

12. Spring Festival

13. Dragon Boat Festival

14. Mid-Autumn Festival

15. Tanabata

16. Chongyang

17. New Moon

18. Canyue (duet)

19. Full Moon

20. First quarter moon

2 1. First quarter moon (multiple)