"Observation for starch test" Essays and Research Papers

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    Six Observations

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    Methods/Procedures To test the original hypothesis‚ six observations were taken at many different times during the day. Observations were taken during the morning‚ mid-afternoon‚ and the evening. The data was collected on four different days. To make sure that the observations would be consistent and accurate‚ two sets of observations were taken around in the same time frame. The location and the weather were constant‚ while the time of day was altered since it was the variable that was being tested

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    Observation Paper

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    Observation Paper Alyssa Bosco St. Josephs College Running Head: OBSERVATION ASSIGNMENT ! 1 A very important young girl and boy in my life‚ had let me into their lives in order to complete this assignment‚ allowing me to understand the small and major differences between a healthy child and an autistic child. This observation assignment concerns the physical domain‚ but more specifically the development of gross motor skills. The purpose of this observation is to determine the differences in

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    Data Tables: Part 1: |Chemicals|Well No.|Observations of the Reaction| A.|NaHCO3 + HCl||Bubbling in center of droplets. Homogeneous| B.|HCl + BTB||Turns yellow immediately after contact. Homogeneous| C.|NH3 + BTB||Turned dark blue. Homogeneous| D.|HCl + blue dye||Solution turns green immediately after contact. Homogeneous| E.|Blue dye + NaOCl||Stays blue. Homogeneous| | with the 1 drop of HCl||Mixes and turns a bluish green color. Homogeneous| F.|NaOCl + KI||Slightly yellowish tint to the

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    Cognitive Observation

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    2:8 years 3 years 6.5 years Aim & Rationale of observation: My aim while carrying out this observation was to observe a group of children‚ specifically the 2nd youngest child‚ aged 2yrs 8 months and his cognitive response to an activity involving numeracy. The type of cognitive skill I was looking for is what cognitive developmental stage children need to be at to be able to conserve and my colleague used Piaget’s Conservation Test involving Numbers to determine this. Background Information

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    Observations of Chemical Changes Observations from Procedures Well#/ Question Chemicals Reaction A NaHCO3 and HCl-CO2 Bubbles B HCl and BTB Turns Orange C NH3 and BTB Still blue- no change D HCl and blue dye Turns green E Blue dye and NaOCl Stays blue – no change F NaOCl and KI Turns pale orange/yellow G KI and Pb(NO3)2 Milky yellow solid H NaOH and phenolphthalein Turns bright pink I HCl and phenolphthalein Bubbles- cloudy J NaOH and AgNO3 Solid formed/ turned brown K AgNO3 and NH3 No change

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    unless it said otherwise. After each combination I looked at the reactions with a white and black piece of paper underneath the well plate to determine what was happening. Using my chart I wrote down my observations that occurred. After testing required combinations I chose 3 household cleaners to test. I chose Clorox‚ Windex‚ and dish soap and recorded their reactions. Dish soap being the most acidic out of the three. Calculation and Error: The biggest calculation and error that I can think of‚ would

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    Review Application and research progress of starch in polymer materials★ Wang Zhi-fen‚ Fang Lin‚ Zhang Ke-xi‚ Fu Xin Abstract: Starch a natural polymer that is characterized by cheap‚ regenerative‚ and good biodegradation is generally mixed with low density polyethylene‚ high density polyethylene‚ polypropylene‚ and polystryrene to prepare degradable materials. In order to relieve "white pollution" due to undegradability of plastic materials‚ starch is mixed with polyvinyl alcohol‚ polylactic acid

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    Observations of Chemical Changes   Lab Report                                                                                                         Expectations:   Data Table 1: What you Expected to happen Well #/ Question   Chemicals   Reaction A NaHCO3 and HCI - C02  A bubble occurrence   B   HCI and BTB  A deep yellow C NH3 and BTB  A purple color D HCI and blue dye  A deep blue E Blue dye and NaOCI  A greenish color F NaOCI and KI  A bright red G KI and Pb(NO3)2

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    Test

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    Name: EXEMPLAR Date: …………………. 1.1 Choose the FIVE correct functions of assessment in learning and development from the following… Collect personal information Complete documents and report to employers Determining level of knowledge & understanding √ Ensuring that learning is taking place √ Checking progress√ Adhering to course criteria √ Providing a summary to learning √ Stop Learners from wasting time Discourage

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    Test

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    Sample Exam Paper Module name Module code Economic Fundamentals in the Investment Environment BECO01-5 (NQF LEVEL 5) Please note: This sample exam paper does not necessarily have the identical format to the examination (summative assessment) that you will write at the end of the semester. However‚ the type of questions that you will find are similar in nature to those found in the exam. Please see the Assessment Guidelines pertaining to this module for more guidance relating to the exact

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