Have you ever seen a shiny piece of glass with a design on it? That's called glass etching. It looks like the design has been carved into the glass but it's really a special chemical that has been used to make the design.
So, when you want to make a design on a piece of glass, you can use special tools to scratch it, but it's really hard work and it may not look great. Glass etching is a way to make your design look really smooth and professional.
The first thing you need is a design or pattern. You can draw the design onto a special type of paper, called vinyl or contact paper, and stick it onto the glass. This paper is called "resist" and it will protect the areas of the glass that you don't want to etch on.
Next, you need a special liquid called etching cream. This cream is made up of chemicals that eat away at the glass and make it look frosted. It's sort of like a magic potion just for glass! Make sure you wear gloves and goggles so the etching cream doesn't touch your skin or get in your eyes.
You spread the etching cream all over the resist paper (the one with the design on it) and wait for a certain amount of time. The longer you wait, the deeper the etching will be. After the time is up, you wash away the cream with water and take off the resist paper.
Now, you should see your design etched or frosted onto the glass. Pretty cool, right? You can make designs on windows, mirrors, drinkware, and even on glass picture frames to give them a special touch. And now, you know how it's done!