Liquid-propellant rocket
A liquid-propellant rocket is a big machine that can fly really high up into the sky or even into space. It works by using different liquids that are mixed together and then set on fire. When they burn, they create a lot of hot gas that shoots out of the bottom of the rocket really fast. This is what makes the rocket go up into the sky.
The rocket has a big container, kind of like a tank, that holds two different liquids. One is called the fuel and the other is called the oxidizer. These liquids are very special and they get pumped into a smaller container, kind of like a bottle, where they mix together. Then, they are ignited by a spark or flame, and they burn up really quickly, like a big burst of fire.
The burning mixture creates a lot of really hot gas, and this gas needs to go somewhere. Since it can't go sideways or up or down, it shoots out of the bottom of the rocket, pushing it upwards. This is why the rocket has a nozzle at the bottom where the hot gas comes out.
When the fuel runs out, the rocket can't fly anymore and it falls back to the ground. That's why rockets are usually sent up with a payload or things to deliver, like satellites, astronauts or equipment.
Overall, liquid-propellant rockets are amazing machines that use special liquids to create a big burst of fire that pushes them high up into the sky!
The rocket has a big container, kind of like a tank, that holds two different liquids. One is called the fuel and the other is called the oxidizer. These liquids are very special and they get pumped into a smaller container, kind of like a bottle, where they mix together. Then, they are ignited by a spark or flame, and they burn up really quickly, like a big burst of fire.
The burning mixture creates a lot of really hot gas, and this gas needs to go somewhere. Since it can't go sideways or up or down, it shoots out of the bottom of the rocket, pushing it upwards. This is why the rocket has a nozzle at the bottom where the hot gas comes out.
When the fuel runs out, the rocket can't fly anymore and it falls back to the ground. That's why rockets are usually sent up with a payload or things to deliver, like satellites, astronauts or equipment.
Overall, liquid-propellant rockets are amazing machines that use special liquids to create a big burst of fire that pushes them high up into the sky!