Presentation on theme: "Biotechnology is technology based on biology, especially when used in agriculture, food science, and medicine...."— Presentation transcript:
Biotechnology is technology based on biology, especially when used in agriculture, food science, and medicine....
You Tube intro to thinking Hats qO4 qO4 The de Bono Hats system (also known as "Six Hats" or "Six Thinking Hats") is a thinking tool for group discussion and individual thinking. It provides a means for groups to think together more effectively, and a means to plan thinking processes in a detailed and cohesive way. The method is attributed to Dr. Edward de Bono and is the subject of his book, Six Thinking Hats. Edward de Bono
In your group put on your yellow thinking hat and discuss the positive implications biotechnology could have. Put on your black thinking hat and discuss the limitations or negative implications biotechnology could have. Put on your green thinking hats and list 3 things that could be improved in the future using biotechnology h/video_clips/biotechnology_for_a_better_future_part_1_v0181
Food – Bread, Yoghurt, Cheese Composting or changing the soil environment Hydroponics Caring for animals Worm Farming
Working with living things – organisms, animals, cultures Hygiene Disposal of moulds and bacteria Not using a food prep area
Which ones of these are relevant for children? Attitudes towards caring for living things Keeping the environment aesthetically pleasing and healthy. How we deal with organic waste. Sustainability
Hydroponics, in its simplest form, is growing plants by supplying all necessary nutrients in the plants' water supply rather than through the soil. The word derives from the Greek root words hydro and ponics, meaning water working.
Online activities /?id=540&vers=2.0 /?id=540&vers=2.0 Bring in an expert Visit a hydroponic garden Books, videos, photos
Growing plants : more rapidly in smaller areas (greenhouses, living rooms, classrooms, and rooftops) to produce food in parts of the world where space, good soil, and/or water are limited.
Growing media for plants – combination of sand, gravel, perlite, rockwool and or oasis. Yoghurt containers one small and one larger to hold the solution Chux cloth as a wick Nutrient solution ( obtained from garden centres or specialist stores)
Macronutrients Nitrogen (N) Encourages leaf renewal and growth Phosphorus (P) Encourages root growth and blooming Potassium (K) Helps the plant to resist disease and grow in a variety of temperatures. Calcium (Ca) Encourages new growth Magnesium (Mg) Helps to maintain good leaf colour that aids in sunlight absorption Sulphur (S) contributes to leaf colour.
Passive – plant simply has its roots suspended in hydroponic solution Active – usually found in commercial systems where the plants roots are continually bathed in a moving film of nutrient solution.
Don’t over crowd plants Select disease and pest resistant plant varieties Keep hand and equipment clean when handling to avoid transferring of bacteria and disease Watch for pests Change solution regularly ( every 1-3 weeks) Position 60 cm from sunny window.