For 10 points, name this technique which fires a beam of negatively charged particles to magnify images.
Samples prepared for this process are often either stained with uranyl acetate, or are adsorbed to metal, which is then dissolved by acid. Since most biological specimens are destroyed by this technique, it often takes place at "cryo" temperatures. Samples for this process are often sliced into thin pieces and coated in gold. This technique can determine the morphology of a surface in its "scanning" variant. Both that type and the "transmission" form of this technique use particles with shorter de Broglie wavelengths than photons. For 10 points, name this technique which fires a beam of negatively charged particles to magnify images.
Samples prepared for this process are often either stained with uranyl acetate, or are adsorbed to metal, which is then dissolved by acid.
electron microscopy [or EM; or scanning electron microscopy or SEM; or transmission electron microscopy or TEM; or cryoelectron microscopy; accept "microscopes" instead of "microscopy"; prompt on just "microscopes" or "microscopy"]