1) Hungtington's disorder is caught from your parents? a) True b) False 2) There are 23 chromosomes in every cell? a) True b) False 3) The Earth's atmosphere is mainly nitrogen? a) True b) False 4) Carbon dioxide keeps the Earth warm enough for life? a) True b) False 5) The "mean value" is the most frequently occuring value? a) True b) False 6) The oldest rocks on Earth are over 4000 million years old? a) True b) False 7) Tectonic plates are in the crust of the Earth? a) True b) False 8) Stem cells are unspecialised cells? a) True b) False 9) Mammals naturally produce clones? a) True b) False 10) There is a correlation between pollen and hay fever? a) True b) False 11) CO is the chemical formula for carbon dioxide? a) True b) False 12) Dinosaurs were killed by an asteroid collision? a) True b) False 13) You are made of stardust? a) True b) False

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