// JavaScript Document


var questions = new Array();
var choices = new Array();
var answers = new Array();
var response = new Array();

questions[0] = "1. If you filled a balloon with Deuterium (a heavier isotope of Hydrogen) what would it do?";
choices[0] = new Array();
choices[0][0] = "Sink to the floor";
choices[0][1] = "Float to the ceiling";
choices[0][2] = "Immediately catch fire";
choices[0][3] = "Start nuclear fusion";
answers[0] = choices[0][1];

questions[1] = "2. Why should you be cautious when handling Selenium? ";
choices[1] = new Array();
choices[1][0] = "It is extremely radioactive";
choices[1][1] = "It burns when exposed to air";
choices[1][2] = "It is unusually heavy";
choices[1][3] = "It worsens your body odour";
answers[1] = choices[1][3];

questions[2] = "3. How many Carbon atoms are contained in a 'bucky ball'?";
choices[2] = new Array();
choices[2][0] = "36";
choices[2][1] = "48";
choices[2][2] = "60";
choices[2][3] = "None";
answers[2] = choices[2][2];

questions[3] = "4. Goitre is caused by a lack of Iodine in your diet. What is another name for the condition?";
choices[3] = new Array();
choices[3][0] = "Nottinghamshire Neck";
choices[3][1] = "Derbyshire Neck";
choices[3][2] = "Iodine Neck";
choices[3][3] = "Brass Neck";
answers[3] = choices[3][1];

questions[4] = "5. Erbium is named after what place in Europe?";
choices[4] = new Array();
choices[4][0] = "Paris, France";
choices[4][1] = "Erbensk, Russia";
choices[4][2] = "Ytterby, Sweden";
choices[4][3] = "Erbium, Bulgaria";
answers[4] = choices[4][2];

questions[5] = "6. How did Professor Poliakoff's colleague describe Potassium?";
choices[5] = new Array();
choices[5][0] = "Highly reactive";
choices[5][1] = "Nasty";
choices[5][2] = "Evil";
choices[5][3] = "The Devil's Metal";
answers[5] = choices[5][2];

questions[6] = "7. Which element did cameraman Brady give his mother-in-law for her 60th birthday?";
choices[6] = new Array();
choices[6][0] = "Gold";
choices[6][1] = "Carbon (diamond)";
choices[6][2] = "Plutonium";
choices[6][3] = "Neodymium";
answers[6] = choices[6][3];

questions[7] = "8. Lobsters have blue blood because of which element?";
choices[7] = new Array();
choices[7][0] = "Copper";
choices[7][1] = "Iron";
choices[7][2] = "Hassium";
choices[7][3] = "Zinc";
answers[7] = choices[7][0];

questions[8] = "9. Bohrium is named after a scientist from which country?";
choices[8] = new Array();
choices[8][0] = "Russia";
choices[8][1] = "Denmark";
choices[8][2] = "Austria";
choices[8][3] = "Germany";
answers[8] = choices[8][1];

questions[9] = "10. Why has there nearly been a world-shortage of the element Rhenium?";
choices[9] = new Array();
choices[9][0] = "Political unrest in Zimbabwe";
choices[9][1] = "It's not found on Earth";
choices[9][2] = "Problems with mining equipment";
choices[9][3] = "Its use in aircraft engines";
answers[9] = choices[9][3];

questions[10] = "11. Where was Einsteinium first observed?";
choices[10] = new Array();
choices[10][0] = "Nuclear bomb debris";
choices[10][1] = "The Sun";
choices[10][2] = "The 1987A Supernova";
choices[10][3] = "A particle collider in Germany";
answers[10] = choices[10][0];

questions[11] = "12. Which element is named after the man who put together the first periodic table?";
choices[11] = new Array();
choices[11][0] = "Darmstadtium";
choices[11][1] = "Mendelevium";
choices[11][2] = "Copernicium";
choices[11][3] = "None of them";
answers[11] = choices[11][1];

questions[12] = "13. If a tin of Lithium is left exposed to air, what will it start smelling like? ";
choices[12] = new Array();
choices[12][0] = "Sulfur";
choices[12][1] = "Almonds";
choices[12][2] = "Ammonia";
choices[12][3] = "Wet dog";
answers[12] = choices[12][2];

questions[13] = "14. What colour will Boron produce in a flame test? ";
choices[13] = new Array();
choices[13][0] = "Green";
choices[13][1] = "Pink";
choices[13][2] = "Blue";
choices[13][3] = "None";
answers[13] = choices[13][0];

questions[14] = "15. At what temperature will Nitrogen usually boil (on the Celsius scale)? ";
choices[14] = new Array();
choices[14][0] = "1073";
choices[14][1] = "22";
choices[14][2] = "Minus 196";
choices[14][3] = "It will not boil";
answers[14] = choices[14][2];

questions[15] = "16. In our special Ethiopia video, which element was nicknamed Lalibela because of the town's 12 churches? ";
choices[15] = new Array();
choices[15][0] = "Chlorine";
choices[15][1] = "Argon";
choices[15][2] = "Sodium";
choices[15][3] = "Magnesium";
answers[15] = choices[15][3];

questions[16] = "17. How did Pete and Neil destroy their pumpkin in our 2009 Halloween video? ";
choices[16] = new Array();
choices[16][0] = "Ignited thermite inside it";
choices[16][1] = "Using ionic liquids";
choices[16][2] = "Dropped it from the chemistry building";
choices[16][3] = "With a small quantity of caesium";
answers[16] = choices[16][0];

questions[17] = "18. What is the main reason Helium is used in association with superconducting magnets, such as those at the Large Hadron Collider? ";
choices[17] = new Array();
choices[17][0] = "It is unreactive";
choices[17][1] = "It has a low boiling point";
choices[17][2] = "It has no odour";
choices[17][3] = "It conducts electricity";
answers[17] = choices[17][1];

questions[18] = "19. What colour is Chlorine gas? ";
choices[18] = new Array();
choices[18][0] = "Colourless";
choices[18][1] = "Green";
choices[18][2] = "Red";
choices[18][3] = "It cannot exist as gas";
answers[18] = choices[18][1];

questions[19] = "20. Which allotrope of phosphorus is most reactive? ";
choices[19] = new Array();
choices[19][0] = "Red";
choices[19][1] = "Black";
choices[19][2] = "White";
choices[19][3] = "They are equally reactive";
answers[19] = choices[19][2];


// response for getting 100%
response[0] = "Perfection. You certainly know your periodic table!";
// response for getting 90% or more
response[1] = "Very good. Mendeleev would be proud!"
// response for getting 70% or more
response[2] = "Not bad, but you could do better!";
// response for getting over 50%
response[3] = "You got more than half, but maybe you should try again?";
// response for getting 40% or more
response[4] = "Hmmm, we think you need to go back and watch more of our videos!";
// response for getting 20% or more
response[5] = "Disappointing. You need to watch more of our videos!";
// response for getting 10% or more
response[6] = "That was pretty poor! Watch a few more of our videos then try again!";
// response for getting 9% or less
response[7] = "Shocking! Watch some of our videos then try again!";