Asmall sample of granite is taken from a bolder. both the bolder and the small sample are found to have the same age, based on the decay of uranium-238. why isn't the size of a sample factor in determining its age?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel

What methods could you use to solubilize calcium carbonate