What's an example of a task that requires knowledge of physical objects to perform?
How can I make my own picture frame message board?

What's an example of a task that requires knowledge of physical objects to perform?
To tell a real diamond from a fake.

What's an example of a task that requires knowledge of physical objects to perform?
How do you easily use icing to decorate a cake?

What's an example of a task that requires knowledge of physical objects to perform?
How to make Garlic Bagel Chips