What's an example of a task that requires knowledge of physical objects to perform?
How can you make a space saver rack in your garage?

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

What's an example of a task that requires knowledge of physical objects to perform?
Shampoo hair without water.

What's an example of a task that requires knowledge of physical objects to perform?
How can I edge my lawn without an edger?