Tim Peake describes that the International Space Station is a working laboratory, where a number of international astronauts undertake a variety of different scientific experiments and research. It is located 400km above the Earth and it travels at 17500 miles per hour. This results in it orbiting the Earth every 90 minutes, and this means that the astronauts see 16 sunrises and sunsets every day. Due to the combination of travelling so quickly and the gravitational pull from the Earth, the Space Station remains in orbit free falling around the planet. These two forces are balanced and results in the feeling of zero gravity that the astronauts feel whilst up in the International Space Station.
Could be used to engage pupils with the current mission to the International Space Station focusing on British astronaut Tim Peake. Forces and how they can be balanced and unbalanced could be examined.