1. Our new topic is: 8A Food glorious food

2. Title: 8Aa On a diet Date: 11/11/2018 Keywords: diet, nutrients, recommended daily amounts
2 mins
Write down what you think the word ‘diet’ means.

3. 8Aa On a diet We are learning today: Why we need food
The main 5 nutrients that we need
Tests for starch, proteins and fats

4. Diet The words diet means ‘what you eat’.
We need to eat food because it provides raw materials for our bodies which we need for:
Energy
Growth and repair
Good health

5. Nutrients All the nutrients we need are found in our food.
When we eat the digestive system breaks down the food to use and store these nutrients.
There are five nutrients:
-Carbohydrates -Proteins
-Fats -Minerals
-Vitamins
We also need fibre and water

6. Questions 5 mins What does ‘diet’ mean?
Where do we get nutrients from?
What are the five nutrients?
C_________
P_______
F____
M_______
V________
What are the other two things we need in our diets?

7. Your task 5 mins Food Main nutrient(s) in food
Look at the food labels that you have on your table. Copy and complete the table for each of the food labels that you have.
5 mins
Food
Main nutrient(s) in food

8. Demo – write what you see
Food tests
Demo – write what you see
Food test
Procedure
Observations
Starch (a carbohydrate)
Take a small sample of the food and add 3 drops of iodine solution.
Proteins
Add 10 drops of biuret solution 1 and solution 2 to the food (crushed) in a test tube.
Fats
Rub food on to paper for 20 seconds.

9. Your task Tagliatelle carbonara ready meal Typical values
Amount per portion (g)
Protein
31.5
Carbohydrate
71.5
Fat
26.0
Fibre
6.5
Sodium
3.0
Draw a bar chart for the information shown in the table. Finish it for homework – due Monday.

10. Title: 8Ab Keeping it balanced Date: 11/11/2018 Keywords: balanced diet, nutrients, food pyramid
2 mins
In 2007 adverts for unhealthy foods were banned from being shown during children's TV shows. Why do you think this is? Write down your ideas.

11. 8Ab Keeping it balanced We are learning today:
What each nutrient is used for in the body
The importance of eating a balanced diet

12. Nutrients There are 5 main nutrients: Carbohydrates Fats Proteins
Vitamins
Minerals
We also need fibre and water.

13. Your task
15 mins
Copy and complete the table below using pages in the year 8 textbook.
Nutrient
Use in the Body
Good source (pick one)
Carbohydrates
Provides energy
Protein
Growth and repair
Fat
store energy and insulate the body
Vitamins & Minerals
Small amount needed to maintain health
Fibre
Helps keep the food moving through the gut
Water
Cells and body fluids

14. Your task
5 mins
Draw a plate in your book- put everything on that you have written in the table.

15. A balanced diet
What is a balanced diet?

16. A balanced diet
The nutrients that we need come from our food but they are not all found in one food – we need to eat a variety of foods to get all of the nutrients we need.

17. The food pyramid

18. Your task
5 mins
Draw a plate in your book and plan a balanced meal that contains all seven of the things we need in our diet. Use the food pyramid on page 10 of the textbook to help you.

19. Poor diets 5 mins Use page 12 in the book to describe the effects of:
Eating too much fat
Not eating enough food
Eating food that contains too much energy

20. Title: 8Ac You’ve got guts Date: 11/11/2018 Keywords: digestive system, stomach, intestines
1 mins
Look at your food diary. What nutrients did you get the most of from your diet over the weekend?

21. 8Ac You’ve got guts We are learning today:
The process of digestion and what organs are involved in this process

22. A Balanced Diet? Do you think I ate a balanced diet yesterday?
Look at your food diary – do you think you ate a balanced diet?
What changes could we make?
My breakfast: Bran flakes with milk and sultanas
My Lunch: Cheese and pickle sandwich, pickled onion monster munch and a Cadburys crème egg.
My dinner: Roast chicken, carrots, mash potato, cabbage, broccoli, Yorkshire puddings and gravy.

23. The digestive system
The digestive system uses organs to break down food the food is broken down into nutrients so that they are easier to move around the body and organs.

24. Digestion
Digestion makes larger particles of food smaller so that they can pass through the walls of the small intestine.
Small particle

25. Fill in the gaps
3 mins
Digestion makes large, _______ particles of food small and _______ so that they can pass through the walls of the small intestine.
Soluble Insoluble

26. The digestive system
Mouth
Gullet
Stomach
Small intestine
Large intestine
Rectum

27. Mouth
Digestion starts here and food is chewed and mixed with saliva making it easier to chew and swallow.

28. Gullet
Here muscles around the gullet contract and relax to push food and water down towards the stomach.

29. Stomach
The stomach has gastric acid inside to break down food stored there. This acid kills bacteria that could have been swallowed.
Muscles in the stomach’s wall help to move and mix food around.

30. Small intestine
Carbohydrates, fats and proteins in foods are digested here. These nutrients are absorbed through the lining of the intestine and into the blood.

31. Large intestine Here is where undigested materials end up
(fibre). It maintains
the bodies fluid
balance and also
holds waste before
its eliminated,
being processed
into faeces.

32. Your task
10 mins
Use page 14 in the textbook to label the diagram with the names of the organs and their functions.

33. Your task 10 mins Measure the length of your gut with your partner.
Part of gut
How to measure it
Length (cm)
mouth
distance from your mouth to ear
gullet
from your chin to the bottom of your breast bone
stomach
longest distance from thumb to little finger
small intestine
distance from head to feet multiplied by 4
large intestine
distance from head to feet
rectum
Total length:
add the lengths together and then divide them by 100 to convert the centimetres to metres

34. Title: 8Ad/8Ae Enzymes Date: 11/11/2018 Keywords: enzymes, digestion, model
2 mins
What do we need for digestion?

35. 8Ad Breakdown We are learning today: The role of enzymes in digestion
What enzymes do to our food that we eat
How the small intestine is adapted for absorption of small food molecules

36. Enzymes Enzymes turn large molecules of food into smaller one.
They don’t get used up and they can change shape as they work.
There are lots of different enzymes that work on the different nutrients found in our food.

37. Enzymes
The digestive system produces digestive juices that contain enzymes – special chemicals that help us digest our food.
Different enzymes work best in different areas of your body.

38. Modelling enzymes
Draw the diagram 
Label your diagram with the following words: - large molecule - small molecules - enzymes

39. Small intestines
The small intestines are adapted to absorb small molecules because they contain villi.

40. Your task
Use the glossary in the year 8 textbook to find out the definitions for:
Arteries
Veins
Capillaries

42. Your task

43. Title: 8A assessment Date: 11/11/2018 Keywords: enzymes, digestion, digestive system
2 mins
List as many organs in the digestive system as you can.

46. Write a story or cartoon:
Identify the food groups in a cheese sandwich.
Write the organs in the digestive system in order that the cheese sandwich will pass through.
Describe what happens in each organ.
Use the level ladder to help you.