Remerciez-le!

Remerciez @Admin pour avoir partagé cet document gratuitement, de la manière la plus simple, en partageant sur les réseaux sociaux.

Guide 1 l2 GUIDE N AREA SCIENCE TOPIC Acid Rain E ?ects in living organisms TEACHER STUDENTS NAME DATE September th to th GRADE Eighth A ?? B ?? C - D Mr MAURICIO RENGIFO RUIZ B Sc Grade Motto ??I strengthen myself in the ability to revise and re ect on t

GUIDE N AREA SCIENCE TOPIC Acid Rain E ?ects in living organisms TEACHER STUDENTS NAME DATE September th to th GRADE Eighth A ?? B ?? C - D Mr MAURICIO RENGIFO RUIZ B Sc Grade Motto ??I strengthen myself in the ability to revise and re ect on the challenges and decisions that entail growing as a person and a citizen who takes care of oneself and acts responsibly towards my surroundings ? Introduction Like the acids found in acid rain there are others such as the acetic acid which is commonly known as vinegar During this experience we will identify an acid compound that is acetic acid that will work as an analogy of the acid rain e ?ects By using water as a control we will establish comparations of the e ?ects of acid rain in living organisms You must be careful with the substances that you are going to use they are not harmful but you will always have to take precautions by staying focus on the experience that you are developing Figure Acid rain production by anthropic emissions SO Sulphur dioxide NO Nitrogen oxide H SO Sulphuric acid HNO Nitric acid taken from Biswojit Ahammed CGUIDE N Materials and methods We will demonstrate the e ?ects of acid on di ?erent materials Use two di ?erent jars in one ?ll it with acetic acid that will resemble acid rain use vinegar any brand should work and the other with water the control group Mark each jar with tape and a sharpie Use eggshells and leaves to represent living objects and paperclips to represent non-living objects like buildings cars etc that get expose to acid Add the materials to both jars Let the jars sit in a protected area check at your discretion Like scientist make predictions and record your observations throughout the process What di ?erences do you notice after one day After one week After one week take out the materials from the jars What do you notice Use your observations to describe the cause-e ?ect relationship of acid on materials Don ? t forget to take pictures during the process Table Complete the following chart with your own data Water Predictions Observations Predictions After day After week Eggshell Vinegar Observations After day After week Green leaf Paper clip Questions Observe what do you describe on the chart what conclusions can you get from your observations Inquire about the e ?ects of acids in living and non-living organisms Literature AUDESIRK T AUDESIRK G BYERS B Biology Life on Earth th edition New Jersey United States Pearson DAMON A McGONEGAL R TOSTO P WARD W Standard level Biology nd edition Pearson education WALPOLE B Biology for the IB diploma Exam preparation guide Cambrige University Press Cambrige United Kingdom C