Fill in: seat, fuel, capsule, space suit, countdown Let's suppose that you've done all the training and put on your 1.. You take the lift up to the top of your rocket. If this was a building, your 2. would be on about the thirtieth floor. Get into the capsule and strap yourself into the 3.. Now you have to spend a few hours waiting while the 4. continues. The highly explosive 5. and liquid oxygen are pumped into the rocket​