IB Environmental Systems and Societies Unit 1 Systems and Models “Nautre Does nothing uselessly” Aristotle (384 – 322 BC) Assessment statement 1.1.1 Outline the concept and characteristics of systems. Apply the systems concept on a range of scales. Teacher’s notes The emphasis will be on ecosystems but some mention should be made of economic‚ social and value systems. The range must include a small-scale local ecosystem‚ a large ecosystem such as a biome‚ and Gaia as an example of a global
Premium Thermodynamics Cybernetics Feedback
proposed to produce vitamin C efficiently such as Reichstein Process‚ TwoStep Fermentation Process and Single Step Fermentation Process. The most common methods used are Reichstein Process and Two-Step Fermentation Process. The first method used is the classical Reichstein process back in the 30s. This process was introduced by Tadeus Reichstein and his collegues in 1935 [1]. The Reichstein process uses a single pre-fermentation process followed by a purely chemical route which involves five steps.
Premium Vitamin C Ascorbic acid Vitamin
Debbie Cao IB Chemistry 12 Pressure/Volume of Air Full Lab Write Up Introduction: According to Boyle’s Law‚ the volume of any given amount of gas held at a constant temperature varies inversely with the applied pressure. In other words‚ when the pressure increases the volume decreases. When pressure decreases‚ volume increases. This can be derived from the following equation: P1 V1=P2 V2 The common use of this equation is to predict how a change in pressure or volume will alter the
Premium
CONTENTS Page INTRODUCTION GROUP 1 NATURE OF THE SUBJECT AIMS OBJECTIVES SYLLABUS OUTLINE SYLLABUS DETAILS ASSESSMENT OUTLINE ASSESSMENT DETAILS ASSESSMENT CRITERIA: GENERAL ASSESSMENT CRITERIA HL ASSESSMENT CRITERIA SL 1 3 4 5 6 8 14 20 26 41 43 61 IB Language A1‚ April 1999 INTRODUCTION The International Baccalaureate Diploma Programme is a rigorous pre-university course of studies‚ leading to examinations‚ that meets the needs of highly motivated secondary school students between the ages
Premium Literature Literary criticism Writing
Determining the equilibrium constant from pH values of changing concentrations of ethanoic acid Design Research question: How will altering the concentrations of ethanoic acid affect the pH value‚ and‚ in-turn‚ the equilibrium constant? Background information: When weak acids react‚ the reaction typically does not go to completion. Rather‚ the system goes to an intermediate state in which the rates of the forward and reverse reactions are equal. Such a system is said to be in chemical equilibrium
Free PH Acid dissociation constant Chemical equilibrium
Microbiology-2460 Lab-003 March 31‚2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium‚ several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today‚ I am to identify an unknown bacterium that is
Premium Escherichia coli Bacteria
Medal Heights INTRODUCTION What is the purpose of this document? This document contains new tasks for the portfolio in mathematics SL. These tasks have been produced by the IB‚ for teachers to use in the examination sessions in 2012 and 2013. It should be noted that most tasks previously produced and published by the IB will no longer be valid for assessment after the November 2010 examination session. These include all the tasks in any teacher support material (TSM)‚ and the tasks in the document
Premium Olympic Games Task Ancient Olympic Games
The Honorable Ronald Reagan and the IB Learner Profile “The International Baccalaureate® (IB) learner profile describes a broad range of human capacities and responsibilities that go beyond academic success.” – International Baccalaureate The IB Learner Profile is a compiled list of ten crucial attributes that exist to guide a student to become highly successful in school as well as external environments such as workplaces and homes. These traits include inquirers‚ knowledgeable‚ thinkers‚ communicators
Premium
Welcome parents and guardians. My name isaosfh. I am a student in Ib. Ib is an intense academic program that prepares students for success in university and life in general. Every one of us has goals that they want to accomplish and succeed; Ib helps push our limits and inspires us to reach those goals. Being in high school is different compared to middle school. It has it’s ups and downs. At times the homework load is heavy‚ and at times it’s not. However‚ with the right time management and organization
Free High school Management College
Quantitative datarelating to‚ measuring‚ or measured by the quantity of something rather than its quality Qualitative data relating to‚ measuring‚ or measured by the quality of something rather than its quantity Strengths of qualitative data: Qualitative research provides more insight into the sampled data‚ as their open ended nature mean they are less limiting of the information provided; they also eliminate the a priori assumptions used in quantitative data Limitations of qualitative
Premium Sampling Scientific method Qualitative research