food tests ppt

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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?

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Page 1: 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?

Page 2: Food Tests PPT

All foods are made from many different food types

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

Page 3: Food Tests PPT

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

Page 4: Food Tests PPT

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

Page 5: Food Tests PPT

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

from ◦ Explain how to test for food groups