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Theory

Exercises

1. System of celestial bodies

Difficulty: easy

2
2. Planets in the solar system

Difficulty: easy

2
3. Category of planets

Difficulty: easy

2
4. Gaseous planets

Difficulty: easy

2
5. Rotation of a planet

Difficulty: easy

2
6. Revolution of a planet

Difficulty: easy

2
7. Natural satellites

Difficulty: easy

2
8. Heavenly bodies

Difficulty: easy

3
9. Colour of a star

Difficulty: easy

2
10. Types of galaxies

Difficulty: easy

2
11. Shapes of constellation

Difficulty: medium

4
12. Order of planets

Difficulty: medium

4
13. Inner planets

Difficulty: medium

4
14. Hottest planet

Difficulty: medium

4
15. Ancient astronomy

Difficulty: medium

4
16. Rocky planets

Difficulty: medium

4
17. Gas giants

Difficulty: medium

6
18. Giant planets

Difficulty: medium

4
19. Asteroid belt

Difficulty: medium

4
20. Astronomical terms

Difficulty: medium

4
21. Polaris

Difficulty: medium

5
22. Terrestrial planets

Difficulty: hard

7
23. Planets of Milky way galaxy

Difficulty: hard

6
24. Celestial bodies

Difficulty: hard

8
25. Formation of Universe

Difficulty: hard

7
26. Jovian planets

Difficulty: hard

8
27. Ancient astronomers

Difficulty: hard

7

Tests

1. Training test 1

Difficulty: easy

8
2. Training test 2

Difficulty: easy

8
3. Training test 3

Difficulty: easy

8

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