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Theory

Exercises

1. Ancient astronomers

Difficulty: easy

2
2. Terms of astronomy

Difficulty: easy

3
3. Famous missions of NASA

Difficulty: easy

2
4. Space programs

Difficulty: easy

2
5. Satellites

Difficulty: easy

2
6. Space agency

Difficulty: easy

2
7. Heirarchy of celestial bodies

Difficulty: easy

3
8. Indian Astronauts

Difficulty: medium

4
9. Cosmonaut

Difficulty: medium

4
10. Man-made satellites

Difficulty: medium

5
11. India in space

Difficulty: medium

4
12. Order of planets

Difficulty: medium

4
13. Rocket experiments

Difficulty: medium

6
14. Missions of NASA

Difficulty: medium

6
15. Chandrayaan missions

Difficulty: medium

4
16. Rocket launch

Difficulty: hard

6
17. Difference between satellite and planet

Difficulty: hard

6
18. Mars mission

Difficulty: hard

8

Tests

1. Training test 1

Difficulty: easy

9
2. Training test 2

Difficulty: medium

10
3. Training test 3

Difficulty: medium

9

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