ocr: ROCKETS CAN WORK IN SPACE because EXTERNAL Raytane have their need own anything supply to of push oxygen. against TANK and they Inside the combustion chamber ofa rocket, propellant burns to create hot gases that push in all directions. The pressure on the apo IGNITER top of the chamber is not balanced by a pressure on the bottom. This unbalanced SOLID-FUEL upward force thrusts the rocket into the BOOSTERS sky. The space shuttle shown here uses five main rockets - two solid- ORBITER fuel boosters, and three PROPELLANI, liquid-fuel rockets. COMBUSTION - - EAET Dr CHAMBER FIREWORK ROCKET LIQUID-F ...