Across
- 4. Main energy source of the ISS (3 letters)
- 5. Floating feeling in space (12 letters)
- 7. The first module launched in 1998 (5 letters)
- 9. Where astronauts eat, sleep, and live (6 letters)
Down
- 1. Astronauts do this daily to stay strong (8 letters)
- 2. Room where astronauts observe Earth (6 letters)
- 3. Robotic arm used for docking and repairs (9 characters)
- 6. This giant structure orbits Earth (3 letters)
- 8. Expandable room added to the ISS (4 letters)