Okay kiddo, do you know what a calculator is? It's a special machine that helps you do math problems quickly. Now, a solar-powered calculator is a type of calculator that runs on sunlight instead of batteries like your toys.
You know how you have to put a battery inside your toys to make them work? Well, solar-powered calculators use something called solar cells instead of batteries. Solar cells are tiny little things that capture sunlight and turn it into energy that can power the calculator.
So, when you turn on a solar-powered calculator and you put it in the sunlight, the solar cells inside the calculator start to capture the sunlight and turn it into electricity. Then, that electricity powers the calculator and makes it work.
The cool thing about solar-powered calculators is that they don't need batteries, which is good for the environment because we don't have to throw away batteries that can harm the Earth. Additionally, as long as there is sunlight, solar-powered calculators can keep working for a long time.
So, there you have it kiddo! Solar-powered calculators are just like regular calculators, except instead of batteries, they use sunlight to make them work.