1 2 3 1 _ _ _ 2 _ _ _ 3 _ _ _ ACROSS 1) the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container 2) an extension at the end and at right angles to the main building 3) a narrative song with a recurrent refrain DOWN 1) a colloid in a more solid form than a sol 2) a flat wing-shaped process or winglike part of an organism 3) marked by skill in deception ** Scroll down for solution. ** Are you sure you want to peek? gas ell lay