The power symbol is a little symbol that looks like a circle with a line on top of it. It's usually found on things like computers, televisions, and other electronics. This symbol tells you that the thing it's on can be turned on or off.
When you want to turn something on, you press a button or switch that has this little symbol on it. When you do that, electricity starts flowing through the thing and it comes to life. The opposite is true when you want to turn something off. You push the button or switch again and the electricity stops flowing, causing the thing to turn off.
This little symbol is really important because it helps you know when something is using electricity. It also helps you save energy and money by turning things off when you're not using them. So next time you see that circle with a line on top of it, you'll know what it means!