What's an example of a task that requires knowledge of physical objects to perform?
To separate egg whites from egg yolks, you can

What's an example of a task that requires knowledge of physical objects to perform?
to place ingredients for a bath bomb into a mold

What's an example of a task that requires knowledge of physical objects to perform?
cardboard

What's an example of a task that requires knowledge of physical objects to perform?
How to Prevent Sweat Stains