100% Read the passage.
When you are about to make something out of clay-something you want to keep and use--you need to get the clay ready. How do you
do that? The process is called wedging.
Wedging is a way of getting all of the air bubbles out of your clay before you start to shape it into the object you want. Why do you need
the air bubbles out? When you fire your clay plece--that is, when you bake it in a kiln to harden permanently-any air that's trapped inside the
clay will expand in the high heat. Your piece will explode, shattering and breaking other pieces in the kiln.
To wedge your clay, take the lump you plan to work with out of the clay bucket or bag. Cut it in half with a thin wire. Then, either slam the
two sides together, or slam them down hard on the tabletop. Do this until the clay is an even consistency (texture, body), and there are no lumps
or air bubbles-maybe twenty or thirty times.
How can you tell if the bubbles are gone? Slice the clay again with the wire, and look for holes or pockmarks on the cut surface. If you find
some, keep wedging
According to the passage, what is the proper way to remove air bubbles from clay?
1. Spread the clay out flat.
02. Throw the clay against a table.
O 3. Cut the clay with a thin wire.
O 4. Knead some water into the clay.