The Role of Phytochrome in Lettuce Seed Germination Abstract This experiment was performed to determine the role of phytochrome in lettuce seed germination. In order to conduct this experiment three different types of Grand Rapids lettuce seeds were chosen: Waldmann‚ Concept‚ and Two Star. Each of these seeds were exposed to the following regulated courses of light exposure for ten minutes after they had imbibed for five minutes: Red‚ White‚ Far Red‚ and Darkness. It was hypothesized that the
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The thermal decomposition of nitrates – ‘writing with fire’ 31 A message is written on filter paper with a solution of sodium nitrate and is then dried‚ rendering it invisible. Applying a glowing splint to the start of the message makes the treated paper smoulder and the message is revealed as the glow spreads its way through the treated paper. Lesson organisation The demonstration takes about 10 -15 minutes. It could be a student activity‚ but with a large class it will need a well
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Where the Red Fern Grows One day before leaving work‚ Billy Coleman spots a Redbone Hound being attacked by a mob of dogs. He gets them away and taking the dog to his home nurtures him/her before letting him/her free. This makes Billy remember his childhood memories of his Redbone Hounds. Billy Coleman‚ along with his 3 sisters and parents‚ live on a farm in the heavily forested Ozark Mountains in the Great Depression. Billy’s dream is to own not one‚ but two Redbone Coonhounds‚ and train them
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Effect of Different Microwave Doses on Vicia faba Germination‚ Growth and Genetic makeup Problem: Some areas are affected by high frequencies of microwaves; this affects plant growth‚ germination and genetic makeup‚ which leads to a loss in crop yield‚ including one of the major crops of high economic importance‚ the Vicia faba. Abstract: Plants and their stresses have been of very great importance lately. Since there are many kinds of stresses‚ we only studied one‚ but a very important
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Aim: To observe the effect of temperature on the rate of the iodine clock reaction using ammonium persulfate Assessment criteria: Design Variables: Table 1.1: List of dependent and independent variables. S.No | Dependent variables | Independent variables | Controlled variables | 1. | Rate of reaction | Temperature | Concentration | 2. | - | - | Pressure | 3. | - | - | Volume | Hypothesis: The iodine
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copper(II) nitrate is used to dissolve in a test tube filled with half distilled water. The solid copper(II) nitrate ionize in water to form copper(II) ions and nitrate ion. Hence‚ a blue solution is formed due to the blue copper(II) ion present in the solution. When excess solid is added‚ the solution will become saturated and do not allow any solid to dissolve‚ so excess solid will remain in the solution. This is shows that the equilibrium between solid and aqueous copper(II) nitrate is achieved
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Akshay Ramaswamy English 10. Ms.Schwarz Where The Red Fern Grows Chapter One 1. The narrator is an old man who is about 50 to 60 years old. He took care of the dog‚ which shows he is compassionate. He lives in Snake River Valley‚ Idaho. 2. The old dog makes the man remember the two dogs he had when he was a boy. The dogs probably won the two cups for him. It brings back memories. Chapter Two 1. The narrator doesn’t
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Lab – Solubility Curve for Potassium Nitrate I. Purpose: To plot a solubility curve for potassium nitrate in aqueous solution. II. Safety: Wear eye protection throughout the experiment. Be cautious of hot water. Wash hands if you come into contact with potassium nitrate. III. Procedure: 1. Carefully weigh out your assigned mass of potassium nitrate on a piece of weigh paper. Carefully pour the sample into the large test tube. 2. Add 20. mL of distilled water to the tube.
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Factors Affecting Seed Germination Research Question What is the effect of dark and light on the germination of radish seeds? Hypothesis I predict the seeds grown in the light will germinate twice as much as the ones grown in the dark. Materials/Setup Paper towels 2 petri dishes 10 radish seeds Water Plastic container A weight A folded piece of paper Procedure 1. Take a paper towel and cut out two circles that are the same size as the base of the petri dishes. 2. Wet
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There are several conditions that affect the germination of seeds. Most factors are external but there are also some internal conditions that affect the germination of seeds‚ even though this is quite rare. The most common and the most important external conditions and factors that affect the germination of seeds are oxygen‚ water‚ temperature and also in some cases light or darkness. Some plants require several variables for successful seed germination. As this is quite rare‚ this often depends on
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