Keywords for the lesson
What is today’s lesson about?
25 August 2021
Recall the tests used to
detect some nutrients.
Describe what our
bodies use the different
nutrients for.
Explain why we need
food and what our food
contains. Recall the
nutrients we need in
our diets.
27 August 2021
Title: Nutrients
Bronze: Explain why we need food and what our food contains. Recall the
nutrients we need in our diets.
Silver: Describe what our bodies use the different nutrients for.
Gold: Recall the tests used to detect some nutrients.
Do Now:
1. Write and underline the date and title.
2. Read through the learning objectives and
keywords for today’s lesson.
27 August 2021
Nutrients
27/08/2021
Starter A:
Why do we need food? Discuss and list your ideas.
Starter B:
What are nutrients? Can you name any? List them.
What does our food contain?
1.
Which food contains the most
ENERGY?
Crunchy Oat Cereal
2. Which food contains the most
PROTEIN?
3. How much of the carbohydrate in
the 100g cereal is NOT SUGAR?
What kind of carbohydrate do you
think it is?
4. A serving of peanut butter is about
40g. How much salt would one
serving contain?
5. Which food contains the most
saturated fat in one serving?
Peanut
Butter
Nutrients are food substances that provide raw
materials for our bodies to use.
There are five main nutrients.
Carbohydrates, fats, proteins, vitamins and minerals.
1
2
3
4
5
Write the name of each food in your book.
Match each one with the main nutrient found in it.
Nutrients are food substances that provide raw
materials for our bodies to use.
There are five main nutrients.
1
4
2
3
5
Carbohydrates, fats, proteins, vitamins and minerals.
1
2
3
4
5
Write the name of each food in your book.
Match each one with the main nutrient found in it.
Not nutrients but still essential in our diet.
Fibre.
Made from plant cell walls.
Not used up by the body
but …
… helps food move through
the intestines to stop
them getting blocked
(constipation).
Water is super important !
Acts as a lubricant.
Dissolves things so
they can move
around the body.
Fills up cells so they
keep their shape.
Cools you down, when
you sweat.
Standard task.
Look at the food labels
and answer these
questions in your book.
1. Which foods obviously
contain lots of fat?
How about protein?
Carbohydrates?
2. Do any foods contain
vitamins? Which
vitamins?
3. Which foods contain
things that people may
be allergic to?
Food labels.
Alternative task.
Write a list of
questions you could
find the answers to
simply by looking at the
food nutrition labels in
front of you?
Quick check:
Food tests.
1.
TASK: Use the pictures to describe how we test for
different food groups. Make sure you give beginning
and end colours
Testing foods to see if they contain 2. Testing foods to see if they contain
protein.
starch (a carbohydrate)
Starch Test
(Carbohydrate)
3. Testing foods to see if they contain
fat.
Glucose Test (Carbohydrate)
Food tests.(answers)
Testing foods to see if they contain starch
(a carbohydrate)
1. Use a pipette to add 3 drops of iodine solution to each food sample.
2. If a blue-black colour appears, the food contains starch. Record the
result in your table.
Testing foods to see if they contain protein.
1. Use a pipette to add few 5 drops of Biuret solution.
2. If there is protein you will see a purple colour within few minutes
Testing foods to see if they contain fat (a lipid).
1. Take a sample of your food and rub it into the paper for 20 seconds.
2. Carefully remove the food from the paper.
3. Hold the paper up to the light. If you can see a greasy mark, the food
contains fat.
Answer the following questions in your
book using full and detailed sentences.
1. How did you know if a food contained starch?
2. How did you know if a food contained fat?
3. Why is it that some foods can be tested for
starch but not for fat using these tests?
4. Can you tell if some foods contain more starch
than others? How can you tell this?
Your Task:
Answer the
Answer the
Answer the
questions on the questions on the questions on the
worksheet called worksheet called worksheet called
‘Nutrients’.
‘Nutrition labels’.
‘Superfibre
bars’.
You only need to complete one task here.
Title: Nutrients
Bronze: Explain why we need food and what our food contains. Recall the
nutrients we need in our diets.
Silver: Describe what our bodies use the different nutrients for.
Gold: Recall the tests used to detect some nutrients.
Self Assessment
Complete these sentences in your exercise
book:
Today I have achieved bronze/silver/gold.
I know this because I can now…
In order to improve my grade I will…
27 August 2021