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Plants for Food and Fibre How do we produce useful plant products and how do we apply these techniques in a sustainable way?
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Plants and their Uses Brainstorm what you know about plants Create a title page for this unit Bill Nye Plants video… YDNHTWTD
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Anticipation Guide This is an Anticipation Guide that is used to help you read information from a textbook and understand its meaning. You will be directed to read the following True/False questions. You will write down a “guess” in the Before space. You may not know why your answer is true and false but be ready to defend your reason. ALWAYS HAVE A REASON! This is hard. But we will practice coming up with reasons for your answers. It is a skill to be able to apply what you know to what you don’t know. After you have made your guesses, then you will read that section of the textbook. As you read, you will fill in the After space answer. Again, you should write down your reason for your answer. These questions will serve as your notes for this information. YDNHTWTD
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p92 Plants are only used to eat. False – clothing, paper, building materials, medicine, oxygen, filters to clean the environment
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p92 Fibre from plants is only used to make clothing and paper. False – building materials and medicine
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p92 Plant fibre comes from the stem, leaves seeds, or roots of a plant. True – except sometimes the flowers or seeds can be used for fibre as well.
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p92 Plants produce carbon dioxide needed for breathing. False – plants produce oxygen needed for breathing and use carbon dioxide to make glucose
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p92 Cars and factories add carbon dioxide to the air. True – so do humans and animals
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p92 It takes three large trees to absorb the excess carbon dioxide put into the atmosphere when a car is driven for one hour. False – it takes four trees
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p92 Plants are the basis of food webs, help clean and filter water, prevent flooding and help keep soil in place. True
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p92 75% of the world’s food supply is based on seven major crops. True – wheat, rice, barley, maize (corn), potatoes, cassava and sorghum
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7 major food crops For the next slides, write down your guess as to which type of crop it is.. Wheat, rice, maize (corn), potatoes, barley, cassava and sorghum YDNHTWTD
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Wheat, rice, maize (corn), potatoes, barley, cassava or sorghum YDNHTWTD
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Rice YDNHTWTD
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Wheat, rice, maize (corn), potatoes, barley, cassava or sorghum YDNHTWTD
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Wheat YDNHTWTD
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Wheat, rice, maize (corn), potatoes, barley, cassava or sorghum YDNHTWTD
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Corn YDNHTWTD
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Wheat, rice, maize (corn), potatoes, barley, cassava or sorghum YDNHTWTD
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Potatoes YDNHTWTD
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Wheat, rice, maize (corn), potatoes, barley, cassava or sorghum YDNHTWTD
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Barley
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Wheat, rice, maize (corn), potatoes, barley, cassava or sorghum YDNHTWTD
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Cassava YDNHTWTD
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Wheat, rice, maize (corn), potatoes, barley, cassava or sorghum YDNHTWTD
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Sorghum YDNHTWTD
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p94 Most of our clothing comes from synthetic material such as cotton, hemp or flax. YDNHTWTD
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Plants for Fibre First of all, cotton, hemp and flax are natural NOT synthetic fibres. So this statement is false for that. CottonHemp Flax
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Plants for Fibre However, most of our clothing DOES come from synthetic material like polyester or nylon so it is true for that.
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p94 Cotton is the world’s most important non-edible plant because it absorbs moisture and allows it to evaporate easily. True YDNHTWTD
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Cotton The flowers of the cotton plant bloom in the afternoon and after only a few weeks, you can see cotton inside! YDNHTWTD
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Cotton False – it flowers in the morning and it takes four months to see the cotton inside
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p95 Hemp is the oldest fibre plant in the world and is used to make jeans. YDNHTWTD
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Hemp Trulse – Hemp is the oldest fibre and it used to be used to make blue jeans but it isn’t today.
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Hemp Hemp is better for the environment. YDNHTWTD
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Hemp True – if we are comparing it to other sources of fibre
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Hemp True – if we are comparing it to other sources of fibre Ready to harvest in one year
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Hemp True – if we are comparing it to other sources of fibre Ready to harvest in one year Hemp paper can be recycled more times,
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Hemp True – if we are comparing it to other sources of fibre Ready to harvest in one year Hemp paper can be recycled more times, Doesn’t need as much pesticides for weeds or insects
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Flax Flax can be eaten, used for cloth, and also used in paints and disposable diapers. YDNHTWTD
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Flax True – except for the diaper part – that comes from wood pulp. Some biodegradable diapers are made from sphagnum moss. Reusable diapers are made from cotton.
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p98 -99 Plants for Medicine Birch resin or sap is used as a natural tooth cleaner for nearly 10 000 years! False – 9000 years YDNHTWTD
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p98 -99 Plants for Medicine Some pain medications are found naturally in plants and then concentrated in a lab. YDNHTWTD
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p98 -99 Plants for Medicine True – some pain medication cannot be made artificially like morphine found in opium poppy seeds
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p98 -99 Plants for Medicine Malaria parasites have developed a resistance to natural quinine. YDNHTWTD
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p98 -99 Plants for Medicine False – the parasites have developed resistance to the artificial quinine but not the natural quinine from cinchona trees
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p100-101 Plants for Transportation and Construction Rubber only comes from latex tapped from rubber trees. YDNHTWTD
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p100-101 Plants for Transportation and Construction Trulse – synthetic rubber can be made from coal and oil by-products, but natural rubber is still an important part
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p100-101 Plants for Transportation and Construction 90% of all houses are made from wood. YDNHTWTD
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p100-101 Plants for Transportation and Construction True – mostly from softwood trees such as conifers ie. fir, pine
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p100-101 Plants for Transportation and Construction Plants are the major source of fuel for warmth and our engines in cars for example. YDNHTWTD
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p100-101 Plants for Transportation and Construction True – wood, as well as fossil fuels which used to be plants millions of years ago -Producing fuel from plants is economical but not very energy efficient. -A large amount of energy is required to grow and harvest the crop
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Plants for Food and Fibre How do we produce useful plant products and how do we apply these techniques in a sustainable way?
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p98 -99 Plants for Medicine Matching Exit slip… Add a few multiple choice…. YDNHTWTD
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Growing Conditions for Healthy Plants
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