What's an example of a task that requires knowledge of physical objects to perform?
How do you cook sugar beets to make beet sugar?

What's an example of a task that requires knowledge of physical objects to perform?
How can I store empty plastic containers and keep them dry and fresh?

What's an example of a task that requires knowledge of physical objects to perform?
Add shine to leather shoes.

What's an example of a task that requires knowledge of physical objects to perform?
What kind of bill should you use to be able to fold it into a tiny rectangle?