Fill can approximately one third full of water. 3. Weigh the can after water is in the can. 4. Take the temperature of the water in the can. 5. Place the first food item under the ring stand. 6. Set the food on fire then quickly place the can on the ring stand above the burning food. 7. Once the food has extinguished take the temperature of the water in the can. 8. Weigh the food that has been burned. 9. Pour out water that is in the can. 10. Repeat steps 2-9 for each food item. Safety:
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The Effects Daycare Has on One’s Child and Family As a full-time working‚ single mother of two children‚ I have come across some difficulties in my time. I am struggling to find the funds to provide a quality childcare service for my children. My four year old son and two year old daughter are the most important thing in my life. Raising children on my own can be a struggle. It is hard to keep track of all the things they need as they are getting older. I have to maintain
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Science investigation Aim: To try to see if the temperature affects the rate in which Amylase breaks down starch into maltose. In this reaction starch is the substrate and maltose is the product. Amylase is an enzyme‚ Enzymes‚ also called catalysts‚ are in living things and there are thousand of them. Enzymes break down food by the active site on the Enzyme forming a chemical bond with a substrate and then water attacks the substrate until it is hydrolysed (split in 2). Equipment: Boiling
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Diffusion is the molecular net movement from a higher concentration to a lower concentration. For instance‚ when a person is smoking‚ the smoke diffuses into the air. The molecules in the smoke‚ released from the cigarette‚ travel through the air. Here is how it occurs. When molecules are close enough‚ they collide with each other‚ their kinetic energy changes. Due to the direct relationship between diffusion and molecular kinetic energy‚ the molecules move away from the point of the collision as
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Aim: To determine the effect of altering concentration (mol dm-3) of hydrochloric acid (HCl) on the rate of reaction (mol dm-3 s-1) for the following chemical reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Research question: How does altering concentration (mol dm-3) of hydrochloric acid (HCl) affect the rate of reaction (g/s) for the following reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Background information: The reaction between calcium carbonate and hydrochloric acid
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Lab Report on Osmosis and Diffusion Biology 1‚ Period 3 March 15‚ 2010 Lab Team: Jason Perez‚ Kicia Long‚ Chris McLemore Purpose: The purpose of this lab is to observe the acts of passive transport: diffusion and osmosis in a model membrane system. The experiment will show how molecules in solution move from areas of higher concentration to areas of lower concentration. The model membrane is dialysis tubing. Materials Used 2.5 cm dialysis tubing 15% glucose
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(page 278) This quote is from Paddy Clarke Ha Ha Ha by Roddy Doyle. Paddy Clarke Ha Ha Ha is about a 10-year-old boy named Patrick Clarke‚ but everyone calls him Paddy. This books ’ setting is in 1968 ’s Dublin‚ Ireland. At the beginning of the book‚ Paddy is a cruel boy; he enjoys the Three Stooges‚ Geronimo‚ Father Damien and the Lepers‚ and also his favorite soccer player George Best. Paddy has challenges in life just like every other 10-year-old boy he has problems at home‚ but when he ’s with his
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butterflies need to regulate their body temperatures through thermoregulation. There are two types of ways to regulate body temperature. The first one is ectothermy. Ectothermic animals‚ or cold-blooded animals‚ rely on outside sources to heat or cool themselves. Cold-blooded animals can lie under the hot sun to heat themselves up and prepare for flight or to move around. However‚ if there is no source of heat‚ they are not able to raise their body temperature to the correct level for movement. Butterflies
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diagram above.) 2.Secondly I will measure the required amount of Zinc (Zn) on a weighing scale‚ again for precise accuracy. I will then measure the starting temperature using a thermometer. Next I will pour the Zinc into the test tube containing CuSO4. 3.Finally I will measure the final temperature using a thermometer and record the temperature rise in °c. (I will carry out all my experiments under lab safety precautions.) Variables *I will vary the mass of Zinc‚ & use the following Zinc weights:
Free Energy Sulfuric acid Chemical reaction
Further along in this episode‚ Paddy is begins to display another voice‚ making him seemingly proud of his brother‚ “He wasn’t selfish like most fellas who could dribble”. The use of the modal verb of ‘could’ in this passage makes it evident that Paddy has noticed that his brother is becoming good at something and this is a more mature display of character towards his brother. He is seen to be stepping up in the absence of his parent who are usually too busy arguing to focus on the children‚ this is the
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