If Thermos lunch box is the best thermal insulator then food in it should maintain its original temperature longer than the other two lunch box types. Identify Dependent Variable: Lunch box type. Independent Variable: The losing and gaining of heat. Variables Attempting to Control: Environmental temperature‚ The temperatures of food and thermal insulators. proposed experiments Materials [Where to get]: * Zeomic lunch box [Canadian Tire] * Thermos lunch box [Walmart] * California
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(The molar heat capacity of liquid water is 75.4 J/mol ºC; the molar heat capacity of ice is 40.2 J/mol ºC. The molar heat of vaporization of water is 40.7 kJ/mol. The molar heat of fusion of water is 6.02 kJ/mol.) (A) 71.8 kJ (B) 419 kJ (C) 64.2 kJ (D) 64.6 kJ (E) 11‚620 J 2. Which physical property of a liquid is NOT the result of strong intermolecular forces? (A) high vapor pressure (B) high boiling point (C) high heat of fusion (D) high melting point (E) high heat of vaporization
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Lab 7: Geologic Time 9 Answer Sheet Name(s) 1. As an example of how radioactive decay works‚ the TA may lead a small demonstration. Each student will receive one penny and stand up. At this point all of the students are parent isotopes. Every student should then flip their penny. Students whose penny lands heads-up should sit down. These students who are now seated are now daughter isotopes. The remaining standing students should again flip their penny‚ and students whose penny lands heads-up
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desired accuracy. The work carried out by hand at the bench is called bench work. Whereas fitting is the assembling of parts together by filling‚ chipping‚ sawing‚ scraping and tapping etc. Fitting shop tools: The tools which are used in fitting lab are called fitting shop tools. These can be classified into the following groups according to their function they performed. 1. Measuring tools I. Measuring tape II. Steel rule III. Outside& inside calipers IV. Verneir caliper V. Micrometer
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oil into a Petri dish‚ and dropped an egg solution into it. We observed it for a formation of a membrane‚ then puncturing it. iii. We placed the evaporated milk in a beaker until it is ¾ full and heat it. We then observe the formation of milk skin at the top. Second is to remove the milk skin and heat again. Observe what happens. B. Selective action of the Plasma Membrane i. We
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The purpose of lab number thirteen was to examine the response of the daphnia to a chemical stimulant. Also examined was how human resting heart rates differed from the daphnia’s. Stimulants are any substances that raise the levels of activity in the body. Stimulants could be a number of things such as physical or chemical. Physical stimulus usually deal with something that affects the five senses such as sight‚ hearing these could be attributed to loud noises or too much light going into your eye
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Margaret E. Vorndam‚ M.S. Version 42-0038-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable
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Abby Goldschmidt Honors Biology 2° Mrs. Gempel September 3‚ 2015 Daphnia Lab Results Paper Abstract The goal of the study was to observe the effects of multiple chemicals on a Daphnia magna’s heart-rate compared to a control (pond water). The different chemicals were caffeine and alcohol. The heart-rate was the main variable in this experiment. The Daphnia’s heart-rate was observed for 15 seconds and then multiplied by 4 to show its heart-rate in one minute. This was repeated 4 times for each
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Country: | Period 1 | Period 2 | Period 3 | China | N/A | * China was chosen for largest populations‚ lower tariffs and shipping cost from Thailand plant (China is the largest if India is compared to). * Market attracted to economy toothpaste (our brand specialty) and sales toothpaste enormously high. | | Distribution | N/A | Huge sales force in China based on market competition; therefore in large‚ expensive sales force and unjustifiable promotion budget. | Product drastically decreased
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Heart of Darkness vs. Secret Sharer Does Conrad base the character development in his stories on his own explorations? Based on the similarities of “The Secret Sharer” and “The Heart of Darkness”‚ yes. Conrad’s main characters are both young‚ non-tested men who are exposed to the uncivilized human nature. There is also another character that is allows an insight into the main characters life. A lot of change takes place inside these characters throughout the story. Conrad develops his main characters
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