c3 food chain part one
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FROM FARM TO PLATEFROM FARM TO PLATE
Aims To illustrate the public and commercial
use of the term ‘food chain’ To review ideas on food and nutrition
from KS3
Define food chainDefine food chain??
Define/explain the following termsDefine/explain the following terms
1.1. ProducersProducers
2.2. Primary ConsumersPrimary Consumers
3.3. Secondary ConsumersSecondary Consumers
4.4. Predators Predators
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What is a FOOD CHAIN?What is a FOOD CHAIN? Complete the definition by using the keywords provided below:
Is a community of……… where each……. is ……in turn by…….. member
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organisms
member
eaten
another
What is a FOOD CHAIN?What is a FOOD CHAIN?
Is a community of organisms where each member is eaten in turn by
another member
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FOOD CHAINFOOD CHAIN
IS A FOOD RELATIONSHIP BETWEEN ORGANISMS
A group of organisms interrelated by the fact that each member of the group feeds upon on the one below it and is in turn eaten by
the organism above it in the chain.
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What is a FOOD CHAIN?What is a FOOD CHAIN?
1. What is a food chain?
2. Make a food chain using any of the images
above
What is a FOOD WEB?What is a FOOD WEB?
Food GroupsFood Groups
GCSE JUNE 2009
Plants use nitrogen to make proteins. One of the other main elements in proteins is oxygen.
What are the other two main elements contained in proteins?
................... and............................[2 Marks]
ANSWERS
Elements in Protein are
Oxygen, Carbon and Hydrogen
FARMING FOR FOODFARMING FOR FOOD
AIMS• To compare intensive and organic farming • To identify costs and benefits of different
methods of farming
Home WorkHome Work
What is the difference between intensive and organic farming?
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INTENSIVE FARMINGINTENSIVE FARMING
Intensive farming involves the usage of various kinds of chemical fertilizers,
pesticides and insecticides.
INTENSIVE FARMINGINTENSIVE FARMINGThis involves the use of chemical 1. Fertilizers, 2. Pesticides3. Insecticides
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FERTILIZERSFERTILIZERS
Fertilizers (or fertilisers) are substances that supply plant nutrients or amend soil fertility.
Fertilizers are applied to promote plant growth.
Main Nutrient in FertilizersMain Nutrient in Fertilizers
The main nutrients present in fertilizer are nitrogen, phosphorus, and potassium
Why is Nitrogen important in Why is Nitrogen important in Soil? Soil?
Nitrogen in the soil is the most important element for plant development.
Nitrogen is a major part of chlorophyll and the green colour of plants.
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GCSE JUNE 2009
INTENSIVE FARMINGINTENSIVE FARMING
Intensive farming or intensive agriculture is a type of
farming that involves the use of
• High inputs of capital,• Use of fertilizers, • Labour (employ people),• Use of labour-saving technologies such as
pesticides
• Large piece of farm land.
Advantages of Intensive Farming
Intensive farming methods achieve high yield or farming output because of the use
of:
1.artificial fertilisers 2.herbicides - chemicals that kill
weeds 3.pesticides - chemicals that kill
pest
ORGANIC FARMINGWhat is organic farming?
ORGANIC FARMINGCopy and complete the definition below
What is organic farming?
Organic farming is the form of ….. that relies on techniques such as crop rotation, green
manure, compost and biological pest control to maintain …… productivity
and control pests on a …….
Soil, Farm, Farming,
TO TO BUYBUY OR OR NOTNOT TO BUY? TO BUY?
Write down a list of questions that you might want to
ask when deciding whether or not to buy
organic produce.
TO BUY OR NOT TO BUY?TO BUY OR NOT TO BUY?
Write down a list of questions that you might want to ask when deciding whether or
not to buy organic produce.
Examples:
1. Is it safe to eat?
2. Where is…
3. Who …
4. How was …
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