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Task Description
Students investigated the presence of starch in various foods by iodine testing. They observed whether or not there was a colour change in the iodine solution and recorded the results. Using these results, they could draw a conclusion about the presence of starch in the food.
Student's work
4B (25) Kayden Tin
Student's Reflection
I carried out an experiment to test for the presence of starch in various foods. I dropped some iodine solution on different foods, and I observed the colour of iodine solution. I learned that bread, chips and biscuits have starch, but lemon doesn’t. I found that iodine solution will turn to a bluey black colour after touching starch. I enjoyed watching the iodine solution change colour; it was so interesting!
Teacher's Comment
Kayden did tremendously well in doing the experiment of testing for starch in various foods! He followed the steps in carrying out the experiment and observed very carefully the colour change of the iodine solution. He was able to identify the presence of starch and draw the conclusion correctly. Well done!
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