Information resources:
http://en.wikipedia.org/wiki/Main_Page
http://en.wikibooks.org/wiki/General_Chemistry
http://www.bbc.co.uk/schools/gcsebitesize/science/
http://www.visionlearning.com/

http://science.howstuffworks.com/chemistry-channel.htm

Dictionary:
http://dictionary.etacude.com/ (Scientific Dictionary)
www.leo.org ( English-German Dictionary)

Further Tools:
www.puzzlemaker.com (useful tool to create a crossword, wordsearch and other quizzes)

Animations: (youtube)
Inorganic Chemistry:
Atomic Structure:
http://www.youtube.com/watch?v=vUzTQWn-wfE (The Atom Song by Peter Weatherall, 3:27min)

Chemical Elements:
http://www.youtube.com/watch?v=bh10xdYqU94&feature=related ( The Element-Song by Tom Lehrer, 1: 31 min)
http://www.youtube.com/watch?v=d0zION8xjbM (Song: Meet the Elements, 3: 47 min)
http://www.youtube.com/watch?v=48uRRZUumWg&feature=related (Periodic Table Song by Peter Weatherall, Elements + properties of elements, 2:05min)

Chemical Bondings:
http://www.youtube.com/watch?v=oNBzyM6TcK8 (Song: What kind of bonds are these?,3:22min)
http://www.youtube.com/watch?v=QqjcCvzWwww (ionic and covalent bonds, 1:52 min)
http://www.youtube.com/watch?v=xTx_DWboEVs&feature=related (ionic bond,0:20min)
http://www.youtube.com/watch?v=WXyFMJ0eJA0&NR=1(ionic bond)
http://www.youtube.com/watch?v=qmgE0w6E6ZI&feature=related(covalent bond)
http://www.youtube.com/watch?v=83uBVif653Y&feature=related (ionic bond)

Aluminium Production and Recycling + Environmental Hazards:
http://www.youtube.com/watch?v=A0VUsoeT9aM&feature=rec-rev-rn-2r-6-HM (calvanic cell: Zn/Cu, 2 min))
http://www.youtube.com/watch?v=0Rs4vHo6_oc&NR=1 (Electrolysis of Aluminium Al, 1 min)
http://www.youtube.com/watch?v=pMKgD6fHS-4&NR=1 ( How do they do? -Aluminium, 9 min)
http://www.youtube.com/watch?v=vJa2ftQwfNY&feature=related ( Environmenta Damage of Bauxit-Mining, 3:37 min)
http://www.youtube.com/watch?v=AOpGhAdQFEY (How stuff works? -DiscoveryChannel, Aluminium Recycling , 2:51 min)