Environmental Health Sciences Center Community Outreach & Education Program CHROMATOGRAPHY (Adapted from: Forensic Science Activities. University of Colorado Boulder Hughes Initiative. .) DESCRIPTION: Students will use paper chromatography to separate ink molecules and identify the pen used on an unknown sample of handwriting. Students will graph and analyze data they collect using paper chromatography. PURPOSE/GOAL: Students will be able to: • Gain understanding of the purpose of chromatography
Free Chromatography
2218 Electronic Systems and Design HLab02: Op-amp Schmitt Trigger “In this lab‚ we will investigate Schmitt trigger comparator circuit. ” “The pre-lab reading will help you make sense of what you are about to do in the lab. The lab tasks and evaluation and review questions will form the basis of your lab report. See course document on how to write the lab report.” 1.0 Lab Learning Outcomes After completing this lab‚ students will be able to:1. Compare the input and output waveforms for a
Premium
Rodney L. Bennett Jr ISSC362 Week 1 Lab #2: Implement Hashing and Encryption for Secure Communications Instructor Name: _Adam Meyer_ Lab Assessment Questions 1. Compare the hash values calculated for example.txt that you documented during this lab. Explain in your own words why the hash values will change when the data is modified. The hash file is changed when the data is modified because the information within the file has changed and it is considered a new/different file. 2.
Premium Cryptography Internet Encryption
Lab 18 Configuring Remote Connections This lab contains the following exercises cand activities: Exercise 18.1 Configuring a VPN Connection Exercise 18.2 Lab Challenge Connecting to a VPN Server Testing VPN Protocols Exercise 18.1 Configuring a VPN Connection Overview In this exercise‚ you will create a connection that enables the workstation to connect to your server using virtual private networking. Mindset VPNs use tunneling to create secure connections across a public network
Premium Virtual private network
Biology 160 Lab Manual Tacoma Community College Last update 06/03/2013 This page left intentionally blank Table of Contents Table of Contents i Laboratory 1: Principles of the Scientific Method 4 In-Lab Report Sheet 12 This page has been left intentionally blank 27 Laboratory 2: Scientific Methodology & Enzyme Activity 28 In-Lab Report Sheet 28 Objectives 33 Introduction 33 Parts of the Swift M5 Microscope 33
Premium Microscope Bacteria Materials science
detrimental. The purpose of this lab is to
Premium Osmosis Semipermeable membrane Concentration
The passalide‚ also known as the Bess beetle‚ are reported to be able to carry 30 times their weight. A scientist names Rodger Kram studies these beetles. But really how strong is the Bess beetle? Does beetle mass seem to affect a beetles pulling power? A way to observe this is by conducting an experiment to see how many pennies beetles of diverse masses can pull. If the beetle mass is related to the beetles pulling power‚ then a beetle with more mass will have a higher pulling power. Materials
Premium Mass Weight Scientific method
In this lab we will look at how molecules move across the membrane of a cell . Osmosis is the movement of water across a cell membrane.In osmosis the cell membrane is selectively permeable‚which allows for the membrane to control what types of substances that passes through.Transportation can either be passive or active.Passive transport does not require the use of added energy where as active transport requires the cell to use energy. Diffusion is the simplest form of passive transport. Using
Premium Chemistry Osmosis Concentration
February 25‚ 2013 Lab: Equilibrium of Forces Purpose/Objective: The objective of this lab was to test the first condition of equilibrium for a set of concurrent coplanar forces‚ prove Lami’s Theorem‚ and to determine an unknown mass using rules of equilibrium. Procedure: In the lab‚ we wanted to find at what angles three separate weights would create a net zero force on a force table so that the ring holding the weights was exactly centered in the middle
Free Force Mass General relativity
Period 12 Chemical Aspects of Life & Spit Lab ABSTRACT: The objective for the Spit lab was to test two different types of crackers for the presence or absence of starch and of reducing sugars. Also‚ to test the chewed cracker‚ the one that didn’t have a reducing sugar‚ for the presence or absence of a reducing sugar with the saliva in it. Adding on‚ another part of the objective is to determine the effect of amylase on starch. For the Chemical Aspects lab‚ the objectives were to test for the presence
Premium Glucose Enzyme Fructose