I have been wanting to try some still life so my question is what kind of things are considered still life and can I use the strobes I already have to do this.
You can use whatever you want. There are no different rules that apply to still life photography. Take the pictures anyway you feel
That guy uses a lot of neutral backgrounds. Black or white. You can get a large piece of non reflective white paper to use as a backdrop, or use a thick piece of dark cloth, or any color in between for that matter. Have fun and experiment.
With still life if you get the lighting sorted then everything works.
You say you have Strobes? Do you mean the big professional lights with the 5kJ packs or something else?