Add two tablespoons plus one teaspoon of water to the bowl and stir. Place the mouth of the glass in the middle of the paper plate and trace a circle around it to make a guide. Turn the glass right side up and put the plate on top. Carefully poke four to five small holes with the pencil. Space them apart inside the circle.
Humans use yeast for many things like making bread rise.
It is actually a microscopic living thing. It needs to eat and gives off carbon dioxide gas as waste. The bubbles of carbon dioxide make the bread rise. Here's how you can watch yeast do its thing. You need a packet of dry yeast, some sugar, a balloon, and a small drink bottle.