1 "Science 1" 5 "" "<Hurst003$Dir>" "<Hurst003$Dir>.am" "a{}" 100000 170000 3 1 300 300 436 50 0 0 5 3 3 1327 "Rubidium experiment 1.9" "?" "" "18" "" "d.scrap.36.e37_1_9" "This experiment is not normally seen in the classroom." 2 0 2 0 1 3 3 1047 "Nitrogen Uses 2" "s.ue.1.e7_1" "s.ue.1.e7_5" "Telecom" "" "t.ue.0.e7" "Nitrogen is employed as a propellant in the manned manoeuvring unit used by astronauts when walking in space.
It is also one of the constituents of dynamite!" 2 0 2 2 2 3 3 1169 "Periodic Table Properties 1" "s.pt.0.t1_0" "s.pt.0.t1_4" "" "" "t.pt.t1" "This is Dmitri Mendeleyev, one of the originators of the Periodic Table." 0 0 2 2 3 3 3 668 "Helium Properties 1" "s.pe.0.e2_0" "s.pe.0.e2_4" "" "as.pe.0.e2" "t.pe.0.e2" "Helium is the second most abundant element in the universe.
It is the most difficult gas to liquefy and is impossible to solidify at normal pressures." 0 2 2 2 4 3 3 495 "Gold Uses 1" "s.ue.15.e79_0" "s.ue.15.e79_4" "" "" "t.ue.1.e79" "Gold's beauty and resistance to corrosion have ensured that the metal is widely used in jewellery and for other decorative purposes; gold leaf is used in gilding.
Gold has long been valued because of its rarity and attractive appearance, and was once widely used in coinage." 0 0 2 2 5
