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07-01-2023
Chemistry

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Three foods were tested to see if they contained starch. An iodine solution is used to test for starch. Iodine turns from a reddish/brown to a blue/black colour if starch is present.

1. What is the dependent variable of the experiment?
a) Colour AFTER iodine added
b) Presence of starch
c) Colour BEFORE
d) Food tested

2. What is the independent variable of the experiment?
a) Colour AFTER iodine added
b) Food tested
c) Colour BEFORE iodine tested
d) Presence of starch

Three foods were tested to see if they contained starch An iodine solution is used to test for starch Iodine turns from a reddishbrown to a blueblack colour if class=

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