This document discusses intensive and organic farming methods. Intensive farming uses chemical fertilizers, pesticides, and insecticides to achieve high yields, while organic farming relies on techniques like crop rotation, composting, and biological pest control. The document seeks to compare the costs and benefits of these different farming approaches and determine whether it is worthwhile to purchase organic over conventionally grown produce.

1. FROM 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

2. Define food chain ? Define/explain the following terms Producers Primary Consumers Secondary Consumers Predators www.sciencetutors.zoomshare.com

3. 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 www.sciencetutors.zoomshare.com organisms member eaten another

4. What is a FOOD CHAIN? Is a community of organisms where each member is eaten in turn by another member www.sciencetutors.zoomshare.com

5. FOOD 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. www.sciencetutors.zoomshare.com

6. What is a FOOD CHAIN? What is a food chain? Make a food chain using any of the images above

7. What is a FOOD WEB?

8. Food Groups

9. 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]

10. ANSWERS Elements in Protein are Oxygen, Carbon and Hydrogen

11. FARMING FOR FOOD AIMS To compare intensive and organic farming To identify costs and benefits of different methods of farming Home Work What is the difference between intensive and organic farming? www.sciencetutors.zoomshare.com

12. INTENSIVE FARMING Intensive farming involves the usage of various kinds of chemical fertilizers, pesticides and insecticides.

13. INTENSIVE FARMING This involves the use of chemical Fertilizers, Pesticides Insecticides www.sciencetutors.zoomshare.com

14. FERTILIZERS Fertilizers (or fertilisers ) are substances that supply plant nutrients or amend soil fertility. Fertilizers are applied to promote plant growth. Main Nutrient in Fertilizers The main nutrients present in fertilizer are nitrogen, phosphorus, and potassium

15. Why is Nitrogen important in 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. www.sciencetutors.zoomshare.com

16. GCSE JUNE 2009

18. INTENSIVE 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.

19. Advantages of Intensive Farming Intensive farming methods achieve high yield or farming output because of the use of: artificial fertilisers herbicides - chemicals that kill weeds pesticides - chemicals that kill pest

20. ORGANIC FARMING What is organic farming?

21. ORGANIC FARMING Copy 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,

22. 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.

23. 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: Is it safe to eat? Where is… Who … How was … www.sciencetutors.zoomshare.com