Theory
Practice Questions
| 1. |
Particles of matter and their states
Difficulty: hard |
5
|
| 2. |
Classification of matter
Difficulty: medium |
4
|
| 3. |
Human and responsibility
Difficulty: medium |
2
|
| 4. |
Optics
Difficulty: medium |
3
|
| 5. |
Moon phases and the development of calendars
Difficulty: medium |
2
|
| 6. |
Ecosystems and nature
Difficulty: easy |
1
|
| 7. |
Earth as a life-supporting planet
Difficulty: hard |
1
|
| 8. |
Measuring the immeasurable
Difficulty: easy |
1
|