Food Tests PPT

By the end of this lesson, you should be able to:◦ Describe the food groups that foods are made

from ◦ Explain how to test for food groups

Starter:◦ What is food made from?

All foods are made from many different food types

This includes:◦ Carbohydrates◦ Protein◦ Fat◦ Vitamins and minerals◦ Water◦ Fibre

We are able to test for many different food groups within the science lab

Testing for Starch◦ Add a few drops of iodine and record any colour change

Testing for Glucose◦ Add 10ml of Benedict’s solution, heat up by placing into a

beaker of hot water and record any colour change

Testing for Protein (Biuret test)◦ Add a few drops of Biuret solution◦ Record any colour change

Testing for Fats◦ Add ethanol and shake ◦ Record any colour change

You should now be able to:◦ Describe the food groups that foods are made

from ◦ Explain how to test for food groups