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Drag the items on the right into the middle to match with the items on the left.
acid
alkali
neutral
neutralise
pH
Universal Indicator
Litmus
acid + alkali
red, orange, yellow
U.I.
green
blue, purple
lemon, vinegar, bee stings
soap, toothpaste, wasp stings
indicator
has a pH of 1-6
has a pH of 8-14
has a pH of 7
make a solution of pH7
a scale of acidity
common school indicator
simple indicator
= salt + water
colours of acid in U.I.
Universal Indicator
colour of neutral U.I.
colour of alkaline U.I.
acid substances
alkaline substances
Shows if a liquid is acid, alkaline or neutral

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