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2. - Keeping the station ______ can lead to serious issues in microgravity.
5. - Astronauts experience multiple periods of ______ as they orbit Earth.
7. bed - Waking up to an ______ is a rare sight because astronauts secure their sleeping bags.
8. power - The station relies on solar panels for ______ to run its systems.
12. height - The ______ of the station allows for stunning views of Earth.
13. - Astronauts must carefully ______ equipment to avoid it floating away.
15. 100 km per hour - The station travels ______, orbiting Earth every 90 minutes.
16. a bedroom - Astronauts often have to ______ due to limited space on the station.
19. the body clock - Space travel can ______, making it hard to maintain a regular sleep schedule.
20. on board - When you ______, you immediately notice the absence of gravity.
22. - Being a ______ is not an option when you live in space; everything must be tidy.
23. schedule - Following a ______ is crucial to maintain a healthy sleep pattern.
24. - Each section of the station has a ______ responsible for its operations.
25. walking distance - The station is ______ if you consider floating in microgravity as walking.

1. light - Looking directly at the sun can expose astronauts to ______.
3. in light - The station is often ______ as it orbits between day and night on Earth.
4. fridge - The crew uses a ______ to store their meals and snacks.
6. an altitude of - It operates ______ about 400 kilometers above Earth.
9. - Each astronaut has a personal ______ where they can relax and sleep.
10. - Every ______ undergoes rigorous training before going to space.
11. of community - Living in close quarters helps foster a ______ among the crew.
12. - The station ______ the Earth, providing unique views of the planet.
14. system - A robust ______ is essential for staying in contact with mission control.
17. laundry - ______ is different in space; astronauts wear clothes multiple times before disposal.
18. - The ______ of the space station is much larger than early space habitats.
21. - The ______ system on the space station ensures the safety of all astronauts.