Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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The Separation of Ink Chromatography Emanuel Alvarado Period 06 Group Members: Jason Fernandez‚ Reyna Favela & Lucero Ochoa I. Title: The Separation of Ink Using Chromatography II. Date: October 3rd‚ 2012 III. Purpose: To separate a mixture using paper chromatography. IV. Procedure: 1. Fill beaker with 100 mL water. 2. Poke hole in filter paper with scoopula approximately 1 cm from top. 3. Place dot of ink approximately 2 cm from the bottom of the filter paper
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Insecticidal Property of Acacia (Samanea saman) Seeds and Bark Against Termites (Coptotermes vastator). A study on the insecticidal property of Acacia seeds and bark against termites was conducted to find out if these could be used against termites. The experiment was conducted at the laboratory of the Bureau of Soils in Lipa City and in Lumbang National High School from September to October 2005. The effort was initiated to enrich the laboratory activities in Chemistry and Biology for high school
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Utilization of Persea Americana Pits as Indelible Ink ------------- Research Proposal Group V (IV-C) LAZARTE‚ Miguel Carlos LEDESMA‚ Allen Ray JALIJALI‚ Joyce Darlene MONCADA‚ Aimee Angela SERRANO‚ Erica Dale Submitted to: Mr.Carlito B. Rosales Chapter I I. Background of the study Persea Americana (Avocados) are commercially valuable and are cultivated in tropical and Mediterranean climates throughout the world. They have a green-skinned‚ fleshy body that may be pear-shaped
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Ayoub Laissouf Books‚ Ink‚ and Bindings Introduction The development of the Islamic book art and bookbinding was a result of the need of a written document of the divine revelations that the prophet Muhammad received through the angel Gabriel from 610 AD until 632. The followers of the prophet memorized Quran and transmitted it orally‚ and they jotted it down on bones‚ camel shoulder blades‚ stones and several other materials. However‚ with the swift expansion of the Islam to other regions
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technological advancement we have today. This genre keeps our emotions alive and well. Most stories connect with people in ways they can’t imagine. With fiction keeping our heads out of the clouds‚ there should be no reason to take it out of the curriculum. Ink and Ashes not only deals with the coping of a parent’s death but also the difficulties of high school and the hardships that go along with it. For example‚ the book begins with a family tradition of remembering and honoring Claire’s father every year
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out the potency of the extract of the leaves from the plant camellis sinensis as an ink. Nowadays‚ ink is a pigment in a liquid or paste form used as colorants and dyes. Also‚ they are becoming more and more expensive because of their increasing purposes. Our research aims to produce this ink as a cheaper alternative to these commercial ones. Compared to the ink we are aiming to create‚ commercially produced inks are toxic and can be hazardous to a person’s health once there s a inapprpriate contact
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THE POSSIBILITY OF PRODUCING INK OUT OF CHARCOAL BRIQUETTES A Research Paper Presented to the Faculty of Special Science Class Dumalag Central National High School Poblacion‚ Dumalag‚ Capiz In Partial Fulfillment of the Requirements for the Subject Research II Ronna Mae F. Firmo March 2014 THE POSSIBILITY OF PRODUCING INK OUT OF CHARCOAL BRIQUETTES Ronna Mae F. Firmo Chapter 1 Introduction to the Study Charcoal is one of the most used fire spreader
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THE FEASIBILITY OF DERIVING ALTERNATIVE HIGHLIGHTER INKS FROM POWDER-PUFF FRUITS (Barringtonia racemosa) December 14‚ 2012 CHAPTER 1: I. Background of the Study A highlighter is a form of a felt-tip marker pen which can be used to draw attention to certain words or sentences of documents by marking them with translucent‚ see-through colors. It is an essential stationary item for students as well as working people. The ink used in a highlighter pen or in any other pens plays an important
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Insecticidal Potential of Chili Pepper Leaf Extract Against Termites Abstract. The goal of this research is to determine the insecticidal effects of chili pepper leaf extract on termites. Chili pepper leaves were collected then air-dried and oven-dried until brittle. The leaves were then pulverized and milled using the Willey mill. After this‚ the powdered leaves were boiled in water and filtered. After the preparation of the extract‚ termites were gathered in two containers. One of the containers was
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