1. Where might identifying food become important?
Prepare
Discuss with the people on your table what science could be involved in a career in the hospitality industry?
Challenge:
Where might identifying food become important?

2. Prepare Can you name the 6 different food groups?
Can you give examples of foods that people have allergies to?

3. Agree Learning Objectives.
WE ARE LEARNING… • Conduct food tests to identify different foods
THINGS TO REMEMBER... Use results to make clear conclusions.
YOU WILL BE ABLE TO… Follow instructions for standard procedures in science and make a conclusion from the results.
TRIC…
Key Words.
Starch, sugar, protein and fats P C A R

4. L.O. To conduct food test to identify different foods.
13 November, 2018
Constructions
L.O. To conduct food test to identify different foods.

5. Present new Information
The food and drink industry is the largest manufacturing sector in the country. Over 400,000 people are employed in this industry. Food & drink contributes £28.8bn to the economy. In the UK, about ten people die every year from food-induced anaphylaxis. It is therefore essential that the food and drink industry test their foods to reduce chances of allergies.

6. Construct Meaning
Food test: Sugar with Benedict’s solution Protein with Buiret solution Starch with iodine

7. Present new Information
Add potassium hydroxide to egg white and then shake, add equal amount of copper sulphate to the solution and shake. The solution will turn purple if protein is present.

8. Present new Information
Add glucose to a test tube. Add an equal volume of benedicts solution. Shake and bring gently to the boil, shaking continuously to minimise spitting. The solution should turn blue to red.

9. Present new Information
Add bread to a test tube and then add 2 drops of iodine (orange-brown) solution. If starch is present it will turn blue-black.

10. Apply to demonstrate
Complete the experiment above and then use the results table below to write a conclusion.
L/O

11. Apply to demonstrate
Food
Iodine
Benedict
Buiret
Food group
pasta
Black-blue
Blue
No change
apple
Orange-brown
Brick red
yoghurt
purple
potato
chicken
Name the food group in each food based on the results?
If someone was allergic to protein, which foods should they avoid?
Why is identifying food important in the hospitality industry?

12. Review
Discuss with the people any real life situations where you may use what you have learnt today. E.G. List the type of foods that will contain the above ingredients.

13. To watch a clip about careers in the hospitality sector click here:
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For further information, please see resources/