I could only save this by removing the colours, so I'm afraid the changes I've made are not marked. I hope it is still useful. I've used British English spelling.

Life on board the International Space Station (ISS)

I'm going to write about daily activities on board the ISS. It flies 400 km above the Earth and its speed is 28,000 km per hour. It means that the station orbits the Earth 16 times a day. The ISS is a sort of giant laboratory where the astronauts do scientific research and experiments. The astronauts can also study the Earth when they observe it. The size of the ISS corresponds to a six bedroom house.

Daily life is organised minute by minute because they have long hours of work to do per day. They also must practise [Americans always spell this "practice" whether they mean the verb or the noun, but you are correct here in British usage where the verb is spelled with an "s", and the noun with a "c" - actually have said all that I don't they practise but they "do" sport, or exercise] 2 hours of sport each day because when they're in space, because of the lack of gravity, they lose muscle tone and their bones also become weaker as they also lose calcium and phosphorus

How do the astronauts brush their teeth? When they brush their teeth, they take their toothbrush and they open a water bag. They press it and water comes out from a straw in a shape of a bubble. Then they put it on the toothbrush and the water sticks to it. They put the toothbrush in their mouth then they swallow the water. Then, they put some toothpaste on the toothbrush and they brush their teeth. When they are finished, they put some more water on the toothbrush from the water bag and they swallow the toothpaste and water. The toothpaste is edible so there is no danger.

How do they sleep? They sleep in small cabins and they can sleep in a vertical position or upside down. In space, they don't feel dizzy. They also don't get air sickness.

How do they have a shower? They have a small cabin. Once again, they use a water bag and then, they crash [nice imagery!] the water bubbles onto their body. Then they use a liquid soap. Finally they rinse their body with more water bubbles. It's the same operation when they wash their hair. They can also use wet towels in order to wash themselves

What do they eat? They have a lot of dehydrated food. For some food, they just have to add water in order to eat it. When they want to make a sandwich, they don't use a normal piece of bread but they use Mexican bread (tortillas) instead. They can eat all sorts of food prepared by cooks (and sometimes famous cooks). Note that water inside the ISS is recycled.

The astronauts can also have extravehicular missions. Outside during daylight, it is +150 degrees, and at night it is -150 degrees that's why their suit lets them bear these extreme temperatures.

The ISS [?] is resupplied by spacecraft launched from Earth. The astronauts generally spend six months on board the ISS, after which they are transported off by a Russian spaceship called Soyuz.