This experiment identifies the sugar content in
food. Sugar is a major factor in the growth of plaque and tooth decay.
Note: an adult must supervise this experiment.
What you'll need:
1 bottle of Benedict's solution (ask the school Science department)
assorted small pieces of food (cookies, crackers, bread, fruit)
several glass test tubes
1 heat source (burner, gas or electric)
What to do:
Place a piece of food in each test tube and then pour 30 - 40 ml of Benedict's
solution over the food. Heat the test tubes one at a time over the burner,
using the tongs to hold the test tubes.
What will happen:
Benedict's solution is blue. The presence of sugar will turn the solution
to orange. Are there some foods you thought were sugar-free that have sugar?
Note: with any science experiment, it is recommended you have an adult
present for supervision.
N.S. Department of Health publication
Dental Health Grades 4 - 6/89.
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