Hector Buenrostro Alexys Tran Edgar Contreras Daniel Rodríguez 5th period 9 September 2013 The Mystery Powder Lab Report Introduction: One morning Ms. Mandell woke up to find a weird type of matter. It was a wired heterogeneous mixture we could tell where the solvent and solute separated. She has no idea what it is so she brought the sample to class to show us. The purpose of the lab is for us to try and figure out what makes up this heterogeneous mixture‚ by making observations on
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the flexibility comes from the organic material of the matrix. We can illustrate these facts by treating two bone samples by two different methods: 1. Soaking a bone in vinegar (dilute acetic acid) removes calcium and other minerals from the bone. Samples treated in this manner remain flexible but lose their hardness. 2. Baking a bone chars the organic material in the bone matrix leaving the bone very brittle. In this experiment we will treat two bone samples as described above and observe the changes
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what solvent would work best to erase permanent marker. The solvents I tested were: lemon juice‚ vinegar‚ water‚ and rubbing alcohol. I tried each of these solvents on a permanent marker line on plastic‚ paper‚ fabric‚ and wood. In this research paper‚ I will be talking about what a permanent marker is‚ how they are made‚ why they work so well‚ what rubbing alcohol is and its common uses‚ what vinegar is and its common uses‚ what water is and why water is so essential‚ and what exactly lemon juice
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on earth do I care so much about Mentos? Originally to give my PHY2210 students the experience of participating in a real research project‚ not a canned lab. But I admit the project exploded beyond my original vision… Bubble Theory: Why do sodas fizz when you open them? We like our drinks nice and fizzy. Thanks‚ Henry’s Law! P=Kc Here P is partial pressure of gas above
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Determining pH Using a Red Cabbage Farnoosh Mazarei Food Microbiology April 22‚ 2011 Purpose: To test the pH level of many common household object by use of the juice from a red cabbage. Background: pH is the measure of the acidity or basicity of a solution. The pH scale ranges from 1 to 14 with 1 through 6 being acidic and 8 through 14 being basic; 7 is considered neutral. The use of the red cabbage‚ or red cabbage juice is because red cabbage can be used as an acid/base indicator
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popular around Asia and sunshine handsome image became CONVERSE’s first China brand spokesperson‚ and take Taiwan as the center of radiation throughout Asia brand operation Stefanie Who speak over converse in time for the 2002 World Cup Soda Green Lead singer Qingfeng said‚ to rock ’n’ roll. - London recording a new album‚ of course‚ to bring back the spirit of the original dense rock "‚ and this is CONVERSE always demands creative first‚ subversion of rational‚ agree without prior without
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Crispy Cheddar Chicken 2 lbs chicken tenders or 4 large chicken breasts 2 sleeves Ritz crackers ... 1/4 teaspoons salt 1/8 teaspoon pepper 1/2 cup whole milk 3 cups cheddar cheese‚ grated 1 teaspoon dried parsley Sauce: 1 10 ounce can cream of chicken soup 2 tablespoon sour cream 2 tablespoon butter Crush crackers. If using chicken breasts and not tenders‚ cut each chicken breast into 3 large pieces. Pour the milk‚ cheese and cracker crumbs into 3 separate small pans. Toss the salt
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Lab Safety Quiz Name Period 8th Answer the following questions using complete sentences. If you do NOT write complete sentences‚ you will NOT get credit for the assignment. 1. Describe the process of wafting AND indicate when it would be used in a biology lab. Waving your hand over the chemical so that air goes upwards and being able to smell the chemical easily. This would be used when you would have to smell a chemical in a container. 2. Describe 3 safety precautions
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chemical name for baking powder? What is the chemical name for baking soda? What does baking powder contain? What does baking soda contain? How does baking soda work? How does baking powder work? Why is baking powder used in cooking? Why is baking soda used in cooking? What are the advantages and disadvantages of using baking soda? What are the advantages and disadvantages of using baking powder? What are the advantages and disadvantages of using baking soda compared to using baking powder? What
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Hazardous Household Products Fact Sheet Household hazardous products represent an unregulated waste stream that can lead to environmental contamination when improperly disposed. What happens to improperly disposed of hazardous household products? 1. Hazardous household products that are flushed down the drain‚ poured onto the ground‚ or dumped into storm drains pollute the Bay’s waters and possibly your drinking water. 2. Disposal of hazardous materials in a municipal landfill contributes to the
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