Water and Changing Its State

Transcription

1 Water and Changing Its State NOTE Before using this collection of activities for the first time, please read About Super Science Connections for a discussion of teaching strategies, introductory activities, a full table of contents of all SSC activities, how to connect SSC with literature, mathematics, art, and much more. It is a very useful introduction. A Note about Safety Science Concepts and Benchmarks 147 No Hands! 149 We all Scream for ICE CREAM 153 Waiting on Water 165 Where Does the Water Go? 169 Ocean Water 175 Water Motion 183 Magic Sand 187 Sinking Ice 191 Suppliers 192A Disclaimer. This publication is intended for use by teachers or other adults with properly supervised children. All adults and children are expected to follow normal safety precautions when performing the activities described in this manual (see A Note about Safety). Neither the authors nor the publisher assumes liability for the use of information in this publication. Copyright 1994, 1995, 2012 by the University of Wisconsin Board of Regents ICE Publication Creative Commons License Deed. Attribution-NonCommercial-ShareAlike 3.0 Unported [ licenses/by-nc-sa/3.0/] A portion of this document is below; see complete deed online. You are free to Share to copy, distribute and transmit this work; to Remix to adapt this work. You may do so under the following conditions: Attribution You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). Noncommercial You may not use this work for commercial purposes. Share Alike If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one. Permission to copy worksheets: You have our permission to make as many copies as are needed for students in your classes of any or all of the worksheets that accompany each activity. Printed copies of SSC are available for purchase from ICE, The Institute for Chemical Education ( Catalog/Manuals.html#Anchor-Super-25730); ICE publication Super Science Connections 1995, 2012 by Univ. of Wisconsin Board of Regents ICE, The Institute for Chemical Education

2 A Note about Safety updated 2/2012 The measure of appropriate safety precautions is what would a reasonable person have done in the situation. We have taken a cautious, conservative view of reasonableness in the activities in SSC. We have included only those chemicals and procedures that we do in our own classrooms with confidence that we are not risking the safety of any of the students. The proper safety action if something is splashed into the eye is to wash the eye out with water for five or ten minutes. We are not recommending safety glasses for all of the activities, unless local policies require it. While one of the experiments uses vinegar, no family requires its children to wear safety glasses while using Italian salad dressing! We have not included reactions with ammonia at this age level, however, because a reasonable person would not have a child of this age using ammonia. There are two activities where we suggest eye protections. One is Seltzer Surprise where the top of a film canister pops off, and there is a chance that the top could hit a student directly in the eye, if the student did not follow the directions to stand back. Try this experiment yourself to get an idea of the force of the reaction. The other experiment where we suggest eye protection is Fabulous Fancy Fabric. This is because we are using plastic pipets that are similar to medicine droppers containing rubbing alcohol. These pipets are a great way to deliver small quantities of liquid to one spot. They can also be used as squirt guns, either accidentally or because one of your students just couldn t resist the temptation! You will want to check with your local school district about specific regulations. Some require safety glasses for any science work. There are usually two justifications of this. One is that the district is responding to any potential liability by exercising extreme caution. The other is that wearing safety glasses is a way to model behavior that highlights that safety is an important consideration in a laboratory situation. That is, it doesn t matter what chemicals are being used, the goal is to reinforce that safety glasses should be worn in a science laboratory. There are many sources of both safety glasses and safety goggles including Safety Glasses USA.com ( Enviro Safety Products ( Educational Innovations ( Delta (www. deltaeducation.com), and Science Bob Store ( Publications that are good references for safety at the elementary school level include: Exploring Safely: A Guide for Elementary Teachers by Terry Kwan and Juliana Texley; NSTA; available in print, as an e-book, or bundled (both print and e-book) Safety in the Elementary (K 6) Science Classroom 2nd edition, American Chemical Society; PDF available online at WPCP_012300/pdf/WPCP_ pdf Science and Safety: It s Elementary, Council of State Science Supervisors; information is in the form of a calendar/poster; available online at Safety in the Elementary Science Classroom, NSTA; a flipchart/poster; available from NSTA or from amazon.com Super Science Connections 1995, 2012 by Univ. of Wisconsin Board of Regents ICE, The Institute for Chemical Education

3 All of the activities in SSC are designed to follow general Benchmarks from Benchmarks for Science Literacy. Those listed below are from the 1993 version. Go to About Super Science Connections for a list of all those that apply with both 1993 and current (2009) versions listed. updated 2/ , 2012 by Univ. of Wisconsin Board of Regents

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42 Suppliers List of Suppliers for Materials Recommended updated 2/2012 American Science & Surplus P.O. Box 1030 Skokie, IL phone: Internet: Biophilia, Randy Korb W6803 Manitowoc Road Menasha, WI phone: Clifford W. Estes Co., Inc. 40 Vreeland Avenue Totowa, NJ phone: (customer service) Internet: Delta Education, Catalog 80 Northwest Boulevard Nashua, NH phone: Internet: Edmund Scientific s SCIENTIFICS 60 Pearce Avenue Tonawanda, NY phone: ; (orders) scientifics@edsci.com Educational Innovations 5 Francis J. Clarke Circle Bethel, CT phone: ; Internet: Flinn Scientific, Inc. P.O. Box 219 Batavia, IL phone: flinn@flinnsci.com Internet: Jamie Lazenby (cotton farmer) The LA-Z-BEE 4184 Lee Road 146 Auburn, AL phone: Micromole Scientific Attn. John Mauch 1312 N. 15th Pasco, WA phone: Kathy and Robert Miller (owners of a cotton gin) 2222 Lee Road Auburn, AL Contact between September and November Museum Products Co. 84 Route 27 Mystic, CT phone: ; National Science Teachers Association (NSTA) 1840 Wilson Boulevard Arlington, VA phone: Internet: Oriental Trading Co. P.O. Box 2308 Omaha, NE phone: Internet: Rainbow Symphony, Inc. (3D glasses) 6860 Canby Avenue, Suite 120 Reseda, CA phone: ; rainbowsymphony@rainbowsymphony.com Internet: WREN Enterprises 3145 West Monmouth Avenue Englewood, CO phone: The Institute for Chemical Education 1995, 2012 by University of Wisconsin Board of Regents Super Science Connections 233