What's an example of a task that requires knowledge of physical objects to perform?
How can you sharpen and extend the life of your personal razor without dis assembling it?

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

What's an example of a task that requires knowledge of physical objects to perform?
How can I make a smore inside?

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