Across
- 2. The nearest major galaxy to the MIlky Way Galaxy
- 5. The science of extraction of metals from their
- 8. The strongest force in the universe
- 10. The fastest wave in the universe
Down
- 1. A virus that infects bacteria
- 3. A progressive disorder that causes brain cells to
- 4. The first artificial satellite in the world
- 6. The science that studies the celestial objects and
- 7. Full form of PVC
- 9. The animals which have their heart in their head