Amanda Ayers 09/07/2013 Title: Observations of Chemical Changes Purpose: To observe some properties of chemical reactions and associate them with everyday household cleaning products. Procedure: In order to complete this experiment‚ I had to set up and organize my lab table. I used my 24-well plate‚ my 96-well plate‚ and the first experiment bag which included all of the necessary chemicals. I also had to gather 3 household cleaning products and a pipet in order to test them as well
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simple chemical tests‚ such as solubility‚ pH‚ or color tests. In our group we had to test come common powders such as Alka-Seltzer‚ baking soda‚ flour‚ Vitamin C (ascorbic acid)‚ and salt. Other chemicals that were used to do this experiment were vinegar‚ and Iodine 2 Solution. The equipment used to do this experiment was red litmus paper‚ and 5 test tubes per group. After all materials were gathered‚ we then had to do five different tests to determine what the powder material does. The first
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heat energy is still energy. 5. Over time crusty scales form on the heating coil inside a kettle. These can be removed by covering it with vinegar. As the scales disappear‚ bubbles of gas are observed. Is this a chemical change or a physical change? Using vinegar to take off crusty scales is an example of a chemical change. This is because when using vinegar a new substance is formed. In this case the new substance is a gas. Another reason why we know that it is a chemical change is because bubbles
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oxygen around the combustion will remain and we heat and light. By analyzing the gas ready to prove our hypothesis which is the chemical reaction between baking soda (a base) and vinegar (weak acid) is carbon dioxide. As is heavier than air‚ facing the match expels oxygen. Without oxygen the flame goes out. When you mix baking soda and vinegar becomes an effervescence that seems fun during this reaction shows carbon dioxide‚ carbon dioxide is formed by a molecule of carbon and two oxygen and is in our lungs expel air when breathe in all
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HOW TO MAKE GLUE FROM MILK A Scientific Investigatory Project In Partial Fulfillment Of the Requirements in Science III Presented to Mrs. Dorotea Acuzar Researchers Caringal‚ Joshua A. Panopio‚ Michaela Divine V. Caguete‚ Perlie Flor A. December 2013 CHAPTER I INTRODUCTION During the ancient times‚ people were using either gums from plants or boiled-down bones and hides of animals as their adhesives or glues. These glues needed such a long time to dry and
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water POST LAB QUESTIONS 1. Develop hypotheses on the ability of oil‚ vinegar‚ and laundry detergent to contaminate groundwater. a. Oil hypothesis = b. Vinegar hypothesis = c. Laundry detergent hypothesis = 2. Based on the results of your experiment‚ would you reject or accept each hypothesis that you produced in question 1? Explain how you determined this. a. Oil hypothesis accept/reject = b. Vinegar hypothesis accept/reject = c. Laundry detergent hypothesis accept/reject
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well. Soap up the car. Rinse. Then set your sprayer to a light setting to give a rain fall effect to the car. Once cleaned. Dry with a house towel. Keeping the vehicle wet will leave ugly water spots.Using pure vinegar will do a great cleaning for the tires. Use a hand towel and pour vinegar into it‚ Wipe the tire and rims well. Dry and watch it shine!.My final step to great cleaning is‚ when cleaning your vehicle windows use Windex and news paper. Yes news paper. You will get a thorough and clear
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C‚ 12.E‚ 13.B • • • • • • • • • • • • • • 2 one-ounce medicine cups Safety goggles Plastic spoon (reuse) Basket-type coffee filter 2 9-once clear (reusable) plastic cups 3-quart package of powdered non-fat milk 1 ½ cups vinegar 8 ounce box of baking soda set of measuring spoons Measuring cup Hot water (1/3 – ½ cup) Plastic or newspaper (to cover table if necessary) Paper for gluing Towels for cleanup Levels Middle School (Use as a demonstration for elementary
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Purpose: In this experiment‚ the purpose was to have found out how different chemical solutions help or harm radish plant growth when the seeds of the radish plant are soaked in said solutions prior to planting. Background: The IRP project I am doing is based off the subject of seed germination. The seeds I will be planting are cherry belle radish seeds‚ freshly bought. Instead of planting the seeds in soil like it is normally done‚ the plant seeds will be placed on paper towels to grow for better
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Purpose (or Objective) This part of the experiment expressed clearly in only one or two sentences‚ including the main method used to accomplish the purpose. Ex: The purpose of the experiment was to determine the percentage by mass of acetic acid in vinegar using acid/base titration. The purpose is also sometimes written as a separate section from the introduction. Theory (or Background pertaining to the experiment). This can include information from previous research‚ explanations of theories‚ methods
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