Observations: Part I: Reaction between iron and oxygen Appearance of steel wool after 20 minutes From (relatively) shiny metal strips to not-so-shiny strips that are stained with dark‚ reddish-brown stuff. Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after
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* Biology Investigation 3.1 Porcellio Scaber (Slater‚ Woodlouse) Task 1 The crustacean Porcellio Scaber‚ or more commonly known as the woodlouse‚ is a species usually found in leaf litter or in fallen trees and bark. It feeds on detritus like many other isopods of its type‚ and is generally predated on by small mammals‚ lizards and some insects. The woodlouse habitat reflects its need to avoid warm and dry areas. The woodlouse is prone to desiccation (drying out) due to its body’s large surface
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A neutralization reaction of ethanoic acid and sodium hydrogen carbonate Cristina Li 17th April 2017 Introduction The hypothesis is the balloon will be bigger and bigger with the increase of vinegar. The chemical reaction between the baking soda and vinegar produces bubbles of carbon dioxide gas as part of this acid-base reaction. Sodium hydrogen carbonate (baking
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One example of this is clearly portrayed in Orpheus’s song “Vi Ricorda” as he expresses his happiness in finding love with Eurydice. A “characteristically rhythmic ritornello with strong hemiola becomes the refrain for Orpheus’s ‘Vi Ricorda’” stressing Orpheus’s elation‚ while keeping Eurydice out of the limelight.[ Mcgautreau. “Orfeo: Act II.” Baroque Notes‚ http://mcgautreau.com/notes/early/stage/orfeo2
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MATH INVESTIGATION 4.2 FACTORIZATIONS on the Math Investigator determines if a number is prime or composite. If a number is composite‚ it prints all its factors‚ the number of factors‚ and its prime factorization. The numbers 1‚ 2‚ 4‚ and 6 have 1‚ 2‚ 3‚ and 4 factors‚ respectively: 1 has only 1 as a factor; 2 has 1 and 2 as factors; 4 has 1‚ 2‚ and 4 as factors; and 6 has 1‚ 2‚ 3‚ and 6 as factors. These factors are illustrated by the rectangles shown here. Starting Points for Investigations
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DSME2050H Group 21 Investigation Report - Poon Keung Workshop CHAM‚ King Wah David (1009630152) CHONG‚ Yau Ka Alex (1155002389) LEE‚ Joo Eun June (1155017533) LEE‚ Jun Hee (1155001741) LEUNG‚ Cheuk Wai Isaac (1155000908) LUK‚ Ka Wing Anthea (1155003024) NG‚ Sze Ki Cobi (1155002560) WONG‚ Nga Yan Dorothy (1155000845) YUNG‚ Yi Tak Amy (1155004085) 本強 洋服 Group 21 – Investigation Report 2013 1. Company Profile Poon Keung Workshop (“Poon Keung”) is a manufacturer of business
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Typically‚ the person that prepares the presentence investigation report (PSIR) has a heavy responsibility in report writing. In our criminal justice classes‚ we have identified this person as the probation officer of the defendant. The purpose of writing the PSIR is to inform the judge about the conditions of the defendant and recommend treatment or sentencing options. This is a very difficult decision to make because the options are endless. Sometimes‚ the recommendations are rarely followed.
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STEM INVESTIGATION Our product is the light bulb. As there are many different variations of the light bulb‚ we will just talk about it in general. If a question requires us to talk about other variations‚ then we shall. WHAT IS YOUR PRODUCT? The purpose of our product‚ the light bulb‚ is to provide light in the darkness. WHAT IS THE PURPOSE OF YOUR PRODUCT? The first patent filed for a light bulb was in Canada by a medical electrician in Toronto by the name of Henry Woodward and
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surprisingly minimal. In fact‚ there was no mention of any mention of the costs that are associated with this antitrust behavior. Likewise‚ there was also no mention of a name for the type of antitrust act that was done here. After the full-scale investigation was brought up‚ Google was commanded to change the way it displays its search results and alter the agreements it has with its advertisers. Monopolies and oligopolies are not always bad for society. It really depends on how these different firms
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nvestigation into the Factor of Light and Dark Affecting Woodlice Predictions It was expected that a woodlice would prefer a damp‚ dark‚ but moderately warm surrounding. Normally one would expect to find slaters under logs or concrete slabs in one’s garden. Under these large objects‚ the sun cannot reach directly; therefore it is darker‚ damper and colder than the surroundings. Nevertheless‚ in winter we do not see woodlice crawling around very often‚ and‚ also at night‚ it may
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