CHM 130 Paper Chromatography
|
|
- Madeleine Flynn
- 6 years ago
- Views:
Transcription
1 Introduction CHM 130 Paper Chromatography Chromatography is one of many techniques to separate the compounds in a mixture and to identify unknown substances. It is widely used in chemistry and biology. All types of chromatography involve two different immiscible phases in contact with each other. The mobile phase is moving and the other phase, stationary phase, is not moving. In paper chromatography, a solvent moves from one end of a paper to the other end, as the paper absorbs it. Since it is moving, the solvent is the mobile phase. The paper is the stationary phase. (More specifically, the cellulose molecules in the paper contain many polar OH (hydroxyl) groups that serve as the stationary phase). Chromatography works by capillary action. To separate a mixture of chemicals, a small amount of the mixture is first placed near the edge of an absorbent paper. That same edge is wetted with solvent. The solvent travels up the paper by capillary action, carrying the mixture with it. The various chemicals in the mixture travel different distances. The distance a chemical travels is determined by its interaction with the solvent (mobile phase) and with the hydroxyl groups attached to the paper. Substances that dissolve more readily in the solvent will move farther than the substances that have a higher attraction for the paper. When the solvent has moved the entire length of the paper, the paper is removed from the solvent and dried. The different chemicals in the mixture will be located at different positions on the chromatogram. At this point, we can calculate the R f (ratio of fronts) factor for each substance. For a particular substance the R f factor is defined as R f = Retention factors are useful in comparing the results of one chromatogram to the results of another. If the conditions in which the chromatogram are run remain unchanged (same mobile and stationary phases), the retention factor for a given material should remain constant. This allows unknowns to be compared to known materials. If the retention factor of an unknown does not match that of a known material, they are not the same compound. The various chemicals visible on the chromatogram can often be identified by their positions or their colors or both. If the mixture contains colored compounds, each different compound will appear on the chromatogram as a colored spot or a streak in a particular place. The color and location of each compound can be used as a basis for identification. The color and location of unknown compounds separated under specific chromatographic conditions can be matched with the color and location of known compounds subjected to the same conditions. Chromatograms with uncolored compounds can sometimes be treated with chemicals to color them for identification. Materials / Equipment chromatography paper pencil solvent (0.1% NaCl) ruler 600 ml beaker one set of colored marking pens (crayola or cra-z-art) plastic wrap or watch glass stapler hair dryer 1
2 Procedure 1. Mark the chromatography paper as shown below. Use only black pencil to write on the paper. 19.0cm 9.0cm pencil line 1.0cm from the bottom pencil marks numbered and 2.0cm apart first and last numbers 0.5cm from edges 1. Obtain a set of marking pens and draw a small dot of ink from a red pen on the first pencil mark on the piece of chromatography paper. Continue placing colored dots on the pencil marks in the same order as the visible spectrum: red, orange, yellow, green, blue, and violet. Place other colors such as black, brown, and pink at the end. (If you cannot find every color, that is OK, try to get a range of colors.) Record the spot number, ink color, and brand of the pen in the data table. 2. Staple the paper into a cylinder, dot side out, being careful not to allow the edges to touch one another (Figure B). 3. Pour around 20 ml of the solvent into a large 600mL beaker. Place the paper cylinder into the beaker with the dots at the bottom. Initially, the colored dots should be above the solvent as shown in Figure C. Be very careful that the solvent does not touch the colored dots. Cover the beaker with plastic wrap or a watch glass. 4. Wait for the solvent to move up the paper. It will take several minutes. 5. Remove the paper cylinder when the solvent reaches ~2.0 cm from the top of the chromatography paper. Carefully remove the staples and set the chromatography paper on a paper towel. Draw a line along the highest point the solvent reached with a pencil and quickly blow dry the paper with a hair dryer. 6. Measure the distance traveled from the pencil line at the bottom of the paper to the solvent line at the top of the paper. Record this as Solvent Distance on the data table. 7. Measure the distance traveled from the pencil line at the bottom to the approximate center point of each colored splotch. Record each distance as Spot Distance on the data table. If the original ink spot has separated into multiple colors, then each new color must be measured and recorded separately. 2
3 Name Section Lab Partner Paper Chromatography Lab Questions Answer each of the following questions. Base your answers (conclusions) on reasonable interpretations of your data and provide justification. 1. Why is it important to keep the spots applied to the chromatography paper small? The spots spread out, so if they are too close, the ink will run together 2. Why did some ink dyes travel to the top of the paper and other ink dyes remained near the bottom of the paper? Explain in terms of the attractions of the particles for either the mobile liquid phase or the solid paper stationary phase. Ink that is attracted to the solvent will move towards the top of the paper. Ink that is attracted to the paper will stay near the bottom. Attractions are most commonly due to polarity of the molecules: Polar inks are attracted to polar solvent, nonpolar inks are attracted to nonpolar paper. 3. If a spot travels 2.3 cm during paper chromatography while the mobile phase travels 6.6 cm, what is the R f value of the substance in the spot? 4. What is the stationary and mobile phase used in this lab? Stationary phase is the chromatography paper, because it does not move during the experiment Mobile phase is the salt solution, because it moves up the paper 5. In preparing the chromatography paper, a baseline is drawn in pencil for the positioning the spots. Why is ink never used for drawing the baseline? The ink in the pen may also move with the solvent. This will create a mixed spot with the ink that is being tested. It also eliminates the reference line that is needed to measure the distance the ink and solvent travelled for the R f equation. 3
4 DATA TABLE You may need to divide some of the boxes into multiple rows if the ink separated into more than one color. Spot Number Ink Color Solvent Distance (cm) Spot Distance (cm) R f value
5 5
Experiment 6: Paper Chromatography
Experiment 6: Paper Chromatography In this experiment you will explore the technique of chromatography, a very important method for the separation and identification of substances. There are many different
More informationPaper Chromatography of Gel Ink Pens
Paper Chromatography of Gel Ink Pens Objectives The objectives of this laboratory are: a) To obtain a paper chromatogram of various gel inks b) To identify components of inks by R f c) To determine which
More informationPaper Chromatography
Paper Chromatography Summary Paper Chromatography is a method used to separate mixtures into their different parts. Paper chromatography has been most commonly used to separate pigments, dyes and inks.
More informationINK CHROMATOGRAPHY QUICK PEEK PREPARE YOURSELF MATERIALS SUGGESTED GRADE LEVELS: 9 12 ILLINOIS STATE LEARNING GOALS
QUICK PEEK INK CHROMATOGRAPHY In this lesson, students use paper chromatography and calculate the retention factor of ink to determine what type of marker wrote the ransom note. SUGGESTED GRADE LEVELS:
More informationCHROMATOGRAPHY. 1. Place about 5 drops of blue food color in a disposable plastic cup, a small glass container or on a glass or ceramic plate.
Paper chromatography is a modern method used separate mixtures. Paper chromatography uses paper as the stationary phase and a liquid solvent as the mobile phase. You will use paper chromatography to test
More informationLab Ch 3 Chromatography of Markers & Skittles
Introduction Reproduce beautiful, multicolor art patterns using paper chromatography! Various color pigments that make up black inks and candy can be separated using chromatography. The inks are spotted
More informationExperimental Procedure
1 of 6 9/12/2018, 2:06 PM https://www.sciencebuddies.org/science-fair-projects/project-ideas/foodsci_p006/cooking-food-science/candy-chromatography (http://www.sciencebuddies.org/sciencefair-projects/project-ideas/foodsci_p006/cooking-food-science/candy-chromatography)
More informationChemistry ATAR Year 11
Chemistry ATAR Year 11 Student name: Task 11 Unit 2 Assessment type: Extended réponse Chromatography Conditions Period allowed for completion of the task: two weeks Task weighting 5% of the school mark
More informationin alcohol, had a single dark purple pigment father were more soluble and had a similar polarity to their solvents. (Paper chromatography lab sheet)
Zalewski 1 Analyzing Pigments in Inks Through Paper Chromatography Submitted by: Melissa Zalewski Submitted to: Mrs. McGuckin Course Code: SCH 3UP Date: Thursday, October 20, 2016 Abstract The aim of this
More information5 th INTERNATIONAL JUNIOR SCIENCE OLYMPIAD
5 th INTERNATIONAL JUNIOR SCIENCE OLYMPIAD EXPERIMENTAL EXAMINATION December 13, 2008 E-1 Important Remarks 1. While you are in the laboratory, you should wear safety spectacles at all times. 2. Eating
More informationChrista s Lost Lessons Chromatography Grade: 5-8
National Aeronautics and Space Administration Christa s Lost Lessons Chromatography Grade: 5-8 For more of Christa s lessons and accompanying videos filmed in orbit, visit www.challenger.org/christa. www.nasa.gov
More informationLooking for educational mentoring activity ideas? Look no further
Looking for educational mentoring activity ideas? Look no further Activity 1: The World s Easiest Lava Lamp Clean 1 liter clear soda bottle ¾ cup of water vegetable oil Fizzing tablets (i.e., Alka Seltzer)
More informationLab 9 Photosynthesis. Background. Chromatography. Light Absorption
Lab 9 Photosynthesis Background Plants, cyanobacteria, and algae convert light energy to chemical energy by the process of photosynthesis. This process involves utilizing light energy to combine water
More informationStudent Laboratory Investigation The Chemistry of Combustion and Respiration. Investigation Procedure:
Student Laboratory Investigation The Chemistry of Combustion and Respiration Objective On a quiz that follows you will be asked to: 1. Demonstrate how a chemical equation is written 2. Write the equation
More informationWater Olympics Lab: Properties of Water
Name Period Ms. Pfeil A# II. Training and Measurement: Each group will examine some unique properties of water and answer questions. Do each Training and Measurement once as a group. A. Solubility Test:
More informationMeasurement instruments and procedures
To study and understand Natural Science we have to do some work in the laboratory. To carry this out we need to use a range of lab material. In this presentation we will see the essential materials and
More information5 th INTERNATIONAL JUNIOR SCIENCE OLYMPIAD
5 th INTERNATIONAL JUNIOR SCIENCE OLYMPIAD EXPERIMENTAL EXAMINATION December 13, 2008 E-1 Important Remarks 1. While you are in the laboratory, you should wear safety spectacles at all times. 2. Eating
More informationMinimizing purification time with high resolution flash chromatography
Minimizing purification time with high resolution flash chromatography David Trail*, Veronica Thomason, and John Urh Teledyne Isco Inc., P.O. Box 82531, Lincoln NE 68501 vthomason@teledyne.com (800) 228-4373
More informationPolymers and Enzymes Chemical Principles II Lab Week 2: January 27 30, 2003
Polymers and Enzymes Chemical Principles II Lab Week 2: January 27 30, 2003 1 A. Preparation of Condensation Polymer (Nylon) 1. All work should be done wearing gloves and in the fume hood until the nylon
More informationMiSP Permeability and Porosity Worksheet #1 L1
MiSP Permeability and Porosity Worksheet #1 L1 Name Date Water Movement Through the Ground Introduction You have learned about permeability and porosity. Porosity is a measure of the empty space that is
More informationMiSP Permeability and Porosity Worksheet #1 L3
MiSP Permeability and Porosity Worksheet #1 L3 Name Date Water Movement Through the Ground Introduction You have learned about permeability and porosity. Porosity is a measure of the empty space that is
More informationLight waves interact with materials.
Page of 7 KEY CONCEPT Light waves interact with materials. BEFORE, you learned Mechanical waves respond to a change in medium Visible light is made up of EM waves EM waves interact with a new medium in
More informationPigment Research Authors: Jiří Škoda, Pavel Doulík, PF UJEP Ústí nad Labem, Czech Republic. years
9-11 years Science Content: Elementary Chemistry Target Concepts/Skills: Colour, pigment, mixture, organic nature, green plant pigment, experiment Target Age group: 9-11 years Resources: School chalk;
More informationIntroduction to Spectrometry
Experiment 11 Introduction to Spectrometry Portions adapted by Ross S. Nord and Colleagues, Chemistry Department, Eastern Michigan University from ANAL 043, written by Donald F. Clemens and Warren A. McAllister,
More informationBasic Optics System OS-8515C
40 50 30 60 20 70 10 80 0 90 80 10 20 70 T 30 60 40 50 50 40 60 30 70 20 80 90 90 80 BASIC OPTICS RAY TABLE 10 0 10 70 20 60 50 40 30 Instruction Manual with Experiment Guide and Teachers Notes 012-09900B
More informationGem Hut, Littleton, CO, USA University of Washington Cuprite gemstone (2 mm) Cuprite rainbow (thickness varies)
Building a Rainbow A nanometer ( 1 million times smaller than this dot ) is a length scale that is close to the size of molecules and atoms. Unusual things happen to materials that are made at this size.
More informationExperiment 13 Preparation of Soap
Experiment 13 Preparation of Soap Soaps are carboxylate salts with very long hydrocarbon chains. Soap can be made from the base hydrolysis of a fat or an oil. This hydrolysis is called saponification,
More informationMiSP Permeability and Porosity Worksheet 1 L3
MiSP Permeability and Porosity Worksheet 1 L3 Name Date Water Movement Through the Ground Introduction: You have learned about permeability and porosity. Porosity is a measure of the empty space that is
More informationName: Date Block Wonders of Water
LAB Name: Date Block Wonders of Water PURPOSE: To observe the behavior of water. MATERIALS: 450 ml beaker of water, a penny, a pipette, wax paper, a small graduated cylinder, a glass stirring rod, food
More informationNAME DATE PERIOD. 3. After dividing the circle into three sections, color one section red, one section green and the third section blue.
COLOR WHEEL ACTIVITY SC.B.1.3.6.8.3 understands that wavelength determines the colors of visible light. MA.B.1.3.2.6.1 identifies a protractor as a tool measuring angles and measures angles using a protractor
More informationNAME: PERIOD: DATE: LAB PARTNERS: LAB #6 DRAWING A CONTOUR MAP FROM A THREE DIMENSIONAL MODEL
NAME: PERIOD: DATE: LAB PARTNERS: LAB #6 DRAWING A CONTOUR MAP FROM A THREE DIMENSIONAL MODEL INTRODUCTION Since land distances and elevations on the earth's surface can be very great it is necessary to
More informationLight. Light: Rainbow colors: F. Y. I. A type of energy that travels as a wave Light Experiments.notebook. May 19, 2015
Light Light: A type of energy that travels as a wave F. Y. I. Light is different from other kinds of waves. Other kinds of waves, such as sound waves must travel through matter. Light waves do not need
More informationMiSP Permeability and Porosity Worksheet 1 L2
MiSP Permeability and Porosity Worksheet 1 L2 Name Date Water Movement Through the Ground Introduction: You have learned about permeability and porosity. Porosity is a measure of the empty space that is
More informationCH 112 Special Assignment #5 The Case of the Suspicious Painting
CH 112 Special Assignment #5 The Case of the Suspicious Painting PRE-LAB ASSIGNMENT: Make sure that you read this handout and bring the essentials to lab with you. You may find it helpful to read parts
More informationHaslingden High School Science Faculty HOMEWORK BOOKLET Year 7 Block A Water
Haslingden High School Science Faculty HOMEWORK BOOKLET Year 7 Block A Water Name: Form: Subject Teacher: Date Given: Date to Hand in: Level: Effort: House Points: WWW : IOTI : Parent / Guardian Comment:
More informationMaking a Surface Coating Kersti Cox, Miami University, Oxford, OH
Making a Surface Coating Kersti Cox, Miami University, Oxford, OH To close the yellow note, click once to select it and then click the box in the upper left corner. To open the note, double click (Mac
More informationE3 UV-30 Resist Film Instructions
E3 UV-30 Resist Film Instructions For more information or to view instructions in color, visit www.sherrihaab.com Sherri Haab Designs 2016 Supplies needed: Metal plate to etch (copper, brass or silver)
More informationPreview. Light and Reflection Section 1. Section 1 Characteristics of Light. Section 2 Flat Mirrors. Section 3 Curved Mirrors
Light and Reflection Section 1 Preview Section 1 Characteristics of Light Section 2 Flat Mirrors Section 3 Curved Mirrors Section 4 Color and Polarization Light and Reflection Section 1 TEKS The student
More informationCOLORED PENCIL WITH MIXED MEDIA with Sarah Becktel
SUPPLY LIST COLORED PENCIL WITH MIXED MEDIA with Sarah Becktel Lesson 1: Introduction to Materials and Techniques Strathmore 500 Series Mixed Media Board or Strathmore 400 Series Mixed Media Paper Artist-grade
More informationLongitudinal No, Mechanical wave ~340 m/s (in air) 1,100 feet per second More elastic/denser medium = Greater speed of sound
Type of wave Travel in Vacuum? Speed Speed vs. Medium Light Sound vs. Sound Longitudinal No, Mechanical wave ~340 m/s (in air) 1,100 feet per second More elastic/denser medium = Greater speed of sound
More informationPart I: Color Foundations The Basic Principles of COLOUR theory
Part I: Color Foundations The Basic Principles of COLOUR theory Colour Systems Available colour systems are dependent on the medium with which a designer is working. When painting, an artist has a variety
More informationStudents will need either a 3-ring binder with dividers or folders for organizing their assignments and papers for all classes.
7 th and 8 th Grade 2017-18 Supply List All 7 th and 8 th grade students will need the following items for use in every class: #2 pencils red pens/pencils college-ruled notebook paper blue/black ink pens
More informationSHAPES & COLORS. Copyright by The Adventures of Scuba Jack, Inc., All rights reserved.
SHAPES & COLORS CIRCLE DIAMOND RECTANGLE SQUARE STAR TRIANGLE COLORING SHAPES CIRCLE SQUARE Color the circle red. RECTANGLE Color the square green. TRIANGLE Color the rectangle blue. DIAMOND Color the
More informationTry to Recall GRADE VI LIGHT ENERGY. At the end of the module, you should be able to: Identify energy and its uses (light)
GRADE VI LIGHT ENERGY At the end of the module, you should be able to: Identify energy and its uses (light) Try to Recall Study the pictures. Identify if the illustration shows mechanical or chemical energy.
More informationYEAR 9 (13+) SCHOLARSHIP. March 2012 for entry in September 2012 SCIENCE FACULTY 2. Biology, Chemistry, Physics. Your Name: Your School:..
YEAR 9 (13+) SCHOLARSHIP March 2012 for entry in September 2012 SCIENCE FACULTY 2 Biology, Chemistry, Physics Your Name: Your School:.. Time allowed: 1 hour Total marks: 69 Equipment needed: Pen, pencil
More informationOHIO STATE UNIVERSITY EXTENSION
Cloverbud Investigators: Career Detectives July Background: Let Freedom Ring! We all enjoy watching fireworks on the 4 th of July! There is just something about the explosions, shapes, and colors that
More informationLABORATORY TECHNIQUE AND EQUIPMENT EXPERIMENT 1
LABORATORY TECHNIQUE AND EQUIPMENT EXPERIMENT 1 OBJECTIVE The objective of this experiment is to familiarize the student with the use of basic laboratory equipment and simple chemical laboratory techniques.
More informationBaldwin School Class Supply List School Year
6 th GRADE Baldwin School Agenda 3 Blue Pens 3 Black Pens 3 Red Pens 1 black SHARPIE Post its Sheet Protectors (20 30 Sheets) 24 Pencils #2 1 Box of Colored Pencils 5 Composition Notebooks (marble hardcover)
More informationDirectory of Home Labs, Materials List, and SOLs
Directory of Home Labs, Materials List, and SOLs Home Lab 1 Introduction and Light Rays, Images and Shadows SOLS K.7a, K.7b A 60 Watt white frosted light bulb (a bulb that you can not directly see the
More informationPinwheel. Method. Materials
Pinwheel Square sheet of construction paper. Marker or pencil Scissors Tape or staple Thumbtack Pencil with an eraser on the end Start with a square piece of construction. Draw an X, from corner to corner.
More informationHome Lab 5 Refraction of Light
1 Home Lab 5 Refraction of Light Overview: In previous experiments we learned that when light falls on certain materials some of the light is reflected back. In many materials, such as glass, plastic,
More informationSCHOOL SUPPLIES
SCHOOL SUPPLIES 2017-2018 Attached you will find the supply lists for Pre-kindergarten through Grade 8. PURCHASE ON YOUR OWN Purchase items under this header on the supply list at your local retailers
More informationObjective: Use the process of dying fabrics to illustrate chemical reactions, equilibrium, chemical bonding, and ph.
Tie Dye Chemistry Objective: Use the process of dying fabrics to illustrate chemical reactions, equilibrium, chemical bonding, and ph. Tie Dye Chemistry Lab Resources Video LINK #1 - Chem of Natural Dyes
More informationcolor & dye chemisty Explore in a scientific way! Learn how and why we see color, and how dye chemically reacts with fabric!
for ages 12-17 color & dye chemisty Explore in a scientific way! Learn how and why we see color, and how dye chemically reacts with fabric! objectives and materials what is color? types of color how reactive
More informationChapter 16 Light Waves and Color
Chapter 16 Light Waves and Color Lecture PowerPoint Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. What causes color? What causes reflection? What causes color?
More informationLearn to dye. rainbow one pot yarn
Learn to dye rainbow one pot yarn Exploring colour with wool dyes Dyeing your own fibre is fun and easy to do. Ashford wool dyes allow you to create every colour of the rainbow time after time using simple
More informationSCHOOL SUPPLIES St. Joan of Arc School
Kindergarten number. (Lunch box, clothing, gym clothes, school bags, school supplies, etc.) 1-2 pocket folder with name on upper right corner Markers (Washable, 10 pack primary colors) Print name on each
More informationPeriod 3 Solutions: Electromagnetic Waves Radiant Energy II
Period 3 Solutions: Electromagnetic Waves Radiant Energy II 3.1 Applications of the Quantum Model of Radiant Energy 1) Photon Absorption and Emission 12/29/04 The diagrams below illustrate an atomic nucleus
More informationSound Lab. How well can you match sounds?
How well can you match sounds? Shake each container and listen to the noise it makes. Can you hear the different sounds they make? Describe each of the sounds you hear on your lab sheet. Do two or more
More informationPhysics 2020 Lab 9 Wave Interference
Physics 2020 Lab 9 Wave Interference Name Section Tues Wed Thu 8am 10am 12pm 2pm 4pm Introduction Consider the four pictures shown below, showing pure yellow lights shining toward a screen. In pictures
More informationLesson Plan. Hydrogels: Synthesis and Applications
Lesson Plan Hydrogels: Synthesis and Applications Objectives: Materials: 1. Learn how certain drugs or biomolecules can be encapsulated inside a calcium alginate hydrogel bead 2. Study the release of various
More informationDon't Shatter My Image
Don't Shatter My Image Name Physics - Reflection Lab This lab will locate images and relate the size of the angle at which the ray of light hits the plane mirror to the size of the angle at which the light
More informationLight waves of different wavelengths or combinations of wavelengths cause the human eye to detect different colors.
Section 2: Light waves of different wavelengths or combinations of wavelengths cause the human eye to detect different colors. K What I Know W What I Want to Find Out L What I Learned Essential Questions
More informationUNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Level BIOLOGY 9700/05
Centre Number Candidate Number Name UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Level BIOLOGY 9700/05 Paper 5 Practical Test A2 Candidates answer on the
More informationKindergarten. SWE Supplies. Quantity Required
SWE 0-07 Supplies Required -7 Kindergarten pkg of Crayola Twistable Wax Crayons pkg of 8 Crayola Broad Washable Markers two pocket heavy vinyl portfolio folder (RED) Staples Brand 0 g white glue stick,
More informationDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
CPC - D06L - 2017.01 D06L DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS Dry-cleaning or industrial washing
More informationExperiment G: Introduction to Graphical Representation of Data & the Use of Excel
Experiment G: Introduction to Graphical Representation of Data & the Use of Excel Scientists answer posed questions by performing experiments which provide information about a given problem. After collecting
More informationAncient Textile Dyes: Cochineal
Ancient Textile Dyes: Cochineal This is a fun, hands-on, activity that can be enjoyed by students of all ages. The preparation required ahead of time can be adjusted to suit your class size, available
More informationDIFFERENTIATION OF BALLPOINT AND LIQUID INKS A COMPARISON OF METHODS IN USE
DIFFERENTIATION OF BALLPOINT AND LIQUID INKS A COMPARISON OF METHODS IN USE Ewa FABIAÑSKA, Beata M. TRZCIÑSKA Institute of Forensic Research, Cracow, Poland ABSTRACT: The differentiation and identification
More informationLIGHT BOX & OPTICAL SET CAT NO. PH0615
LIGHT BOX & OPTICAL SET CAT NO. PH0615 Experiment Guide ACTIVITIES INCLUDED: Diffraction Angle of Reflection Using a Plane Mirror Refraction of Different Shaped Prisms Refraction (Snell's Law) Index of
More informationANNUNCIATION CATHOLIC ACADEMY SUPPLY LIST. Kindergarten
Kindergarten 3 4 OZ. ELMERS WASHABLE SCHOOL GLUE 24 No. 2 WOOD PENCIL, BRAND NAME AMERICAN OR DIXON 3 24 COUNT CRAYOLA CRAYONS 2 8 COUNT CRAYOLA WASHABLE THICK CLASSIC MARKERS 1 BLUNT 5" FISKAR SCISSORS
More informationPre-K Supply List. 2 -Boxes of facial Tissue. 2 -Containers of Baby Wipes Glue Sticks Count Box of Crayola Crayons
Pre-K Supply List 2 -Boxes of facial Tissue 2 -Containers of Baby Wipes 12 - Glue Sticks 2 -Boxes Crayola Classic Thick Markers 2 -Boxes Crayola Classic Thin Markers 1 -Box of Colored Pencils 12 -#2 Pencils
More informationLecture 6 6 Color, Waves, and Dispersion Reading Assignment: Read Kipnis Chapter 7 Colors, Section I, II, III 6.1 Overview and History
Lecture 6 6 Color, Waves, and Dispersion Reading Assignment: Read Kipnis Chapter 7 Colors, Section I, II, III 6.1 Overview and History In Lecture 5 we discussed the two different ways of talking about
More informationWARNING: Only for use by children over 10 years old. EXPERIMENT MANUAL. Version 2.0
EXPERIMENT MANUAL Version 2.0 WARNING: Only for use by children over 10 years old. Not suitable for children under 10 years. To be used solely under the strict supervision of adults who have studied the
More informationHarbor Science and Arts Charter School Supply List Kindergarten
Harbor Science and Arts Charter School Supply List 2018-19 Kindergarten Suggested Student Supplies (a more specific supply list will be given out at the Meet-the Teachers Meeting on August 30, 2018) Please
More informationGoldenrod Messages and Name Tags Observation Skills
elearning 2009 Goldenrod Messages and Name Tags Observation Skills Introduction Reveal a secret message by spraying a sign with a special liquid and introduce Acids and Bases with a splash! Publication
More informationObjective In this lab we will cover logistics and introduce techniques for successful examination, preservation, and identification of algae.
INTRODUCTORY LAB Objective In this lab we will cover logistics and introduce techniques for successful examination, preservation, and identification of algae. Notebook Requirements - 2 charts & 4 drawings
More informationMicroscope Labs #1 and #2 e Lab and Hair Lab. Day 1 - e Lab
Name: Date: Microscope Labs #1 and #2 e Lab and Hair Lab Day 1 - e Lab Purpose: To study the image formed by the microscope Procedure: You may begin once you go to the lab area! A. Preparation of the slide
More informationThe Shoebox spectrograph construction and lab investigations. By Timothy Grove
The Shoebox spectrograph construction and lab investigations By Timothy Grove 1 Part 1. Build your own spectrograph from flat cardboard Tools and materials: Necessary items Scrap cardboard (You will need
More informationSTUDENT LABORATORY WORKSHEET EXPERIMENT A: DRUG DELIVERY
STUDENT LABORATORY WORKSHEET EXPERIMENT A: DRUG DELIVERY Student name: Date:.. AIM: The aim of this experiment is to illustrate through a simple model how a miniaturised drug delivery system is created
More informationIman Academy Southeast
1 st Grade Supply List Zipper binder (no backpacks) Pencil pouch (not plastic) 5 manila folders with metal brads 4 plastic folders with metal brads and pockets (red, green, blue, yellow) Safety scissors
More information# Chem 151 Lab Practical Final
# Chem 151 Lab Practical Final Pigments: Putting the color in paint. The Paleolithic hunters who painted the unsurpassed animal murals on the ceiling of the cave at Altamira had only rudimentary tools.
More informationWhat paint can do Part 2
What paint can do Part 2 Paint raw materials How can the properties of the individual paint layers be achieved? To answer this question, let's peek into a paint can and take a closer look at the individual
More informationPK3 AM (MWF) PK3 Full Day (M-F) ASCENSION SCHOOL SCHOOL SUPPLY LISTS
PK3 AM (MWF) Crayons (Crayola jumbo 8; 1 box) Markers (Crayola washable, set of 8) Play Dough (4-pack, any colors) s (6 small) (1 large) Paper towels (3 rolls) Paper plates (6-inch, pkg. of 50) Facial
More informationScience at Home A guide to at home science experiments and activities for students and parents
Science at Home A guide to at home science experiments and activities for students and parents Tess Beem Bowdoin College Class of 2013 Hello! My name is Tess Beem and I am a senior at Bowdoin College.
More informationExercises The Color Spectrum (pages ) 28.2 Color by Reflection (pages )
Exercises 28.1 The Spectrum (pages 555 556) 1. was the first person to do a systematic study of color. 2. Circle the letter of each statement that is true about Newton s study of color. a. He studied sunlight.
More informationSEE THE CHANGE USA Physics III Unit 3.1: Matter III Lesson 3.1.1: Changes of Matter and the Conservation of Mass. Station 1: Lighting a Candle
Candle Matches Matchbox of water Station 1: Lighting a Candle 1. Light a match using the matchbox. Let the match burn for 10-15 seconds and then blow the match out. 2. Light a second match and use it to
More informationCambridge International Examinations Cambridge Ordinary Level
Cambridge International Examinations Cambridge Ordinary Level *8372743652* PHYSICS 5054/41 Paper 4 Alternative to Practical October/November 2015 1 hour Candidates answer on the Question Paper. No Additional
More informationTuning Forks TEACHER NOTES. Sound Laboratory Investigation. Teaching Tips. Key Concept. Skills Focus. Time. Materials (per group)
Laboratory Investigation TEACHER NOTES Tuning Forks Key Concept Sound is a disturbance that travels through a medium as a longitudinal wave. Skills Focus observing, inferring, predicting Time 40 minutes
More informationFlash chromatography. MN Flash adsorbents a unique variety of phases. Separation efficiency and reproducibility
Flash chromatography MN Flash adsorbents a unique variety of phases Flash columns and cartridges from MACHEREY-NAGEL are available with all CHROMABOND SPE / Flash packings (more than 40 phases, e.g., C
More informationPupils Investigate patterns in the number of nails on a geoboard used to form a square. Ruler, pencil, calculator and 1 cm squared dotted paper
Task description Pupils Investigate patterns in the number of nails on a geoboard used to form a square. Suitability National Curriculum levels 6 to 7 Time Resources 30 minutes to 1 hour Ruler, pencil,
More informationForensic analysis of Toners by Thin Layer Chromatography and High Performance Thin Layer Chromatography
Research Journal of Forensic Sciences E-SSN 2321 1792 Forensic analysis of Toners by Thin Layer Chromatography and High Performance Thin Layer Chromatography Abstract Saini Komal *, Rathore Rajshree and
More informationRefraction Inquiry. Background information: Refraction when a waves moves from one medium to another medium at an angle and changes speed.
Refraction Inquiry Direction: Copy down the purpose, background information and answer all the questions on notebook paper. Remember to put part of the question into your answers. Purpose: How does light
More informationDIY Shaving Cream. Ingredients:
DIY Shaving Cream Ingredients: 1/3 cup coconut oil (solid, not fractioned) 1/3 cup shea butter ¼ cup sweet almond oil 4-6 drop tobacco bay leaf fragrance oil Plastic bale jar Tools: Microwave-safe bowl
More informationbreak down on their own. (They are usually non-biodegradable.) Once we make them,
AP CHEMISTRY LAB FIRST PLASTICS LAB Discussion: In the world in which you live, there are many man-made plastics. There are a number of reasons why they are so prevalent in our society; they are cheaper
More informationWhat s in your experiment kit:
E X PE R I M E NT M A N UA L WARNING. Not suitable for children under 8 years. For use under adult supervision. Read the instructions before use, follow them and keep them for reference. WARNING Chemistry
More informationWhile you are hearing a sound, dip the ends of the tuning fork into the beaker of water. What is the result?
SOUND STATIONS LAB Name PROPERTIES OF SOUND Visit each station. Follow the directions for that station and write your observations and the answers to any questions on this handout. You don't have to visit
More informationRecommended Resources: The following resources may be useful in teaching this
Unit D: Forest Products Lesson 2: Understanding the Characteristics of Wood Student Learning Objectives: Instruction in this lesson should result in students achieving the following objectives: 1. Describe
More informationPitt County Schools Grifton School Kindergarten
Kindergarten Bookbag No Wheels Tissues (3 boxes) Crayola Crayons 24 pack (4 boxes) 4 Elmer s Glue Sticks 1 pack of Dixon Ticonderoga Brand Pencils Fiskar Scissors Pink Block Erasers 1 pack of Dry Erase
More information4 boxes of Crayola Crayons Folders with pockets and brads (1 red, 1 blue, 1 green, 1 orange) 1 pair of blunt scissors
2018-2019 School Supplies List Required for all students: Backpack- no wheels Headphones or ear buds 2 reams of copy paper Parents may receive Volunteer Hours for sending in school supplies Important Dates
More information