What's an example of a task that requires knowledge of physical objects to perform?
How do I mix together the ingredients for baked pears?

What's an example of a task that requires knowledge of physical objects to perform?
To prepare yarn to accept dye, you can

What's an example of a task that requires knowledge of physical objects to perform?
How to get rid of a headache.

What's an example of a task that requires knowledge of physical objects to perform?
how to add shine to hair