In this task the focus is on physical knowledge about the world. Given the provided goal task in the input, describe a process that would lead to the asked outcome. This process often involves physical motions with objects, such as moving them, arranging them in a certain way, mixing them, shaking them, etc. 

How would you create uniformity in the look of the bookshelf?
First you will want to get a fine grit sandpaper and sand every piece of wood to a smooth surface.  From there, you will want to obtain a stain or oil that will create a uniform finish when you apply it evenly and equally across all pieces.  Following that, you will want to let the wood drive in a well ventilated space before evaluating if the color you obtained was what you wanted, if not, repeat the staining process until happy.

What type of chainsaw should I use to cut down a very thick tree?
A gas powered chainsaw should be used to cut down a very thick tree as it has more power and can be used for longer at a single time than an electric powered chainsaw.

Make a fun meal with hot dogs and spaghetti

Cut hot dogs into pieces. Thread several pieces of spaghetti through the hot dogs and boil according to the spaghetti directions. Add sauce or butter to taste