1) what colour is 7 a) red b) orange/yellow c) green d) blue e) purple 2) what colour is 0-3 a) red b) green c) purple d) orange/yellow e) blue 3) what colour is 8-10 a) red b) orange/yellow c) green d) blue e) purple 4) what colour is 4-6 a) red b) orange/yellow c) green d) blue e) purple 5) what colour is 11-14 a) red b) orange/yellow c) green d) blue e) purple 6) finish the sentence: Bee stings are ______. a) acidic b) alkali 7) what the missing word: the __ _____ runs from 0 to 14 a) ph scale b) green c) lower d) ph less than 7 8) what the missing number: the lowest ph in the ph scale is _. a) 0 b) 5 c) 14 d) 7 9) what the missing number: the highest ph in the ph scale is __. a) 0 b) 14 c) 31 d) 7 10) what the massing word: a digital __ _____ can be used to find the ph of a solution. a) ph greater then 7 b) ph meter c) weak alkali d) strong alkali 11) what the missing word: alternatively, _____________ (solution or paper) can be used to find the ph of a solution. a) alkali b) ph less than 7 c) green d) universal indicator

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