If God is matter and or energy then he is also part of the physical universe and can be tested for scientifically.
I don't think my paper shredder is aware. Perhaps though you only mean natural objects such as rocks, or living things such as the tree in my neighbour's yard? Coincidentally Harris talks about awareness, starting with his coffee mug and progressing to plants (the issue was raised by the host of the podcast who thinks plants might be aware).
Pantheists believe that God is present in all things, including all of us. You are not saying that, are you? You are simply asserting that God made all things in the natural world.
I do not believe that God is necessarily matter and/or energy. But if he were matter and energy, you already have measured him.
To have awareness implies that something or someone is aware. To be aware we must only be aware of something, not everything. I am not aware of how many ants I stepped on when I took out the trash this morning.
To have awareness is to have a certain knowledge about something. To have knowledge about something does not require one to have knowledge about everything. Having knowledge about one thing is sufficient to be considered aware.
Knowledge can be defined and is defined as familiarity gained by experience.
http://www.dictionary.com/browse/knowledge
It seems to me that atoms are constantly interacting and experiencing other atoms. They certainly can gain familiarity with other atoms and even an intimate familiarity, to the extent where two atoms can join forces to become a completely different and new structure, such as a molecule. These molecules can then join forces with other molecules and become completely different structures. I seriously doubt this could happen if they were not aware of one another. The hydrogen atom has its properties, and it "knows" very well it's propensity to join forces with other atoms and molecules. Is a hydrogen atom aware of me? Perhaps not, but that does not mean it is not aware of itself or that it is not aware of other atoms and/or molecules that enter into its environment.