Fill in the following blanks with suitable words :
(a) Gases can be liquefied by applying ……….. And lowering ………..
(b) When steam condenses to form water, heat is ………..
(c ) Temp on Kelvin scale = Temp on Celsius scale + ……….
(d) Scientists say that there are actually five states of matter : solid, liquid, gas, ......... and ...........
(e) The state of matter called ........... makes a fluorescent tube (or neon sign bulb) to glow.