The Effect of Different Types of Insulation on Heat Retention Aim I am going to investigate the effect of different types of material on heat retention. "Which of the four materials‚ cotton‚ foam‚ aluminium foil and bubble wrap‚ is the best insulator?" Hypothesis The four materials tested in this experiment are cotton‚ foam‚ aluminium foil‚ and bubble wrap. Materials that are good insulators will absorb heat slowly and therefore the water inside the cup will stay warm for
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AP Bio Lab Report Osmosis and Diffusion Introduction When a substance is released into an area‚ the random movement of its molecules results in a multitude of collisions. These collisions‚ in turn‚ lead to a dispersion of the molecules. The overall movement of the molecules will be from an area of high concentration‚ where there will be more collisions‚ to areas of low concentration‚ where the number of collisions will be much less. This process of dispersion will continue until there is no
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Bio 104-03 Lab #3- Acids Bases‚ and Buffers 1. An acid is a substance that releases hydrogen ions as they desolve in water and ranks lower than seven on the pH scale. An example of an acidic substance is lemon juice. A base is a substance that accepts hydrogen ions and ranks higher than seven on the pH scale. An example of a base substance is hand soap. A neutral substance ranks a seven on the pH scale and has equal concentrations of H+ and OH-. An example of this is pure water. Electrolytes
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In bio lab‚ my lab partners and I did a lab experiment involving yeast fermentation. Fermentation is an anaerobic process to regenerate NAD+ to keep glycolysis active. Yeast preforms ethanol fermentation which create ethanol and NAD+. The class used six different types of sugars to determine which fuels fermentation by measuring the amount the carbon dioxide bubbles produced by the yeast. Yeast are single-cell fungi that cannot make their own food. They take the sugars in the surrounding environment
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Scientific Writing and Standard Components of a Lab Report INTRODUCTION Writing is a powerful tool. Effective communication is necessary to succeed in any field. As a professional‚ you must communicate with both your colleagues‚ and the community at large. Writing is the means of showing the value of your work. The specific style of writing in science is based on the unique audience of readers. In addition‚ writing allows one to organize one’s thoughts and clarify ideas‚ and it fosters abstract
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Daphny Maldonado Bio Lab 2107 Kiah Britton W 10-12:30 Is H20 Bad for You? Abstract: In the village of Gopher Hollow there’s a cluster of Blue Baby Syndrome. There were four infants affected by this cluster. The families from the infants would collect their water from wells. We have to determine what’s the source of the high levels of nitrites in the water. The four sources that could be the point of contamination are a new subdivision‚ textile plant‚ an organic farm‚ and a mountain lake
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property. It does not contain the ideas or writing of other individuals/authors. _________________________________________________________ AuthorDate ____________ Lab Section # ___________________________ Lab Partner BIOL 1208 Writing Assignment 1 Results Worksheet These are to be written individually even if you worked in a group. Lab Topic: ________________________________________________ Introduction: What was your null hypothesis? be specific A change in temperature in the reaction of catechol
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Laura Lugo Group: Bianca Jonson Short lab report 10/4/14 Effect of household drugs on circulatory system of Lumbriculus Variegatus (blackworms) Hypothesis & justification part 1: In order to understand a little bit about the effects of common household drugs such as nicotine and caffeine on pulsation rate‚ an experiment was conducted with Lumbriculus Variegattus (Blackworms). In week 1‚ we observed the basal rate of three different worms‚ and then placed the same three worms on different concentrations
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Melissa Morales Bios 101 Spring 2013 Demography- Human Life History Introduction Demography is the study of human populations. It studies the size‚ composition and distribution of a population‚ and the process through which a population changes. Demography allows us to track changes over time and to depict how different periods in history change population dynamics. Births‚ deaths‚ migration and emigration‚ jointly produced the change within a population (Biological Science). Demography
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Dayanna Chiriboga 02/03/2015 Lab Report #1 Genetics 1 χ² Results : Phenotype Expected Expected Observed Ratio Counts Counts (Eͥ i) ͥ (Oi) Deviation (di) =(EiOi) di² = (EiOi)² di²/Ei Purple 75% 657 642 15 225 .34 Yellow 25% 219 234 15 225 1.03 Χ² = ∑ (di / Ei) = 1.37 According to the chi square chart values we are 80% confident that our hypothesis is correct
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