A gas pump is a machine that helps you put gas in your car, truck, or other vehicle. It looks like a big metal box with a nozzle and a screen on the front and a hose and a nozzle on the side.
When you pull up to a gas pump, you usually see a bunch of numbers and buttons on the screen, which can be confusing. But don't worry! All you need to do is to first select the type of gas you want to put in your vehicle - usually, there are three types - regular, mid-grade, and premium.
Then, you need to choose how much gas you want to buy. This is done by pressing the buttons that say how many gallons or dollars you want to purchase. Once you have made your selection, the gas pump will start to pump gas into your car through the nozzle attached to the hose.
While the gas is being pumped, you need to be careful not to get too close to it or to let it spill out. That's why there is usually a sign that says "No smoking" or "Turn off your engine" near the gas pump.
Once the machine has finished pumping the gas, it will beep to let you know. You can then remove the nozzle from your car, put it back on the machine, and pay for your gas using a credit or debit card or cash.
Remember, gas pumps can be dangerous, so always be careful and follow the instructions carefully. And that's all you need to know about gas pumps.