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PRE-PUBLICATION EDITION
This is DRAFT MATERIAL for evaluation purposes only.
The fi nal published edition will contain:
See Unit D: Climate Change on pages 310 to 453
to preview all unit features.
• Chapter Self-Quizzes
• Unit Reviews
• Unit Self-Quizzes
• Appendix A:
Skills Handbook
• Appendix B:
What Is Science?
• Selected Answers
• Glossary with Pronunciation
Guide
• Index
• Final Art & Photographs
(In the pre-publication
edition “FPO” and “T/K”
means For Placement Only.)
COMPONENTS ISBN
Student Text 978-0-17-635528-9
Student eBook 978-0-17-635529-6
Teacher’s Resource 978-0-17-635530-2
ExamView® Test Bank 978-0-17-635533-3
Interactive Toolkit DVD 978-0-17-635532-6
GRADE 10 AUTHOR TEAM
Christine Adam-Carr
Martin Gabber
Christy Hayhoe
Doug Hayhoe
Katharine Hayhoe
Milan Sanader
SENIOR PROGRAM CONSULTANT
Maurice DiGiuseppe
PROGRAM CONSULTANTS
Doug Fraser
Martin Gabber
Doug Hayhoe
Jeff Major
Digital sample material for Science Perspectives 10 is available online.
For more information about the program visit:
www.nelson.com/scienceperspectives
9
ISBN-13 : 978-0-17-611660-6
ISBN-10 : 0-17-611660-5
780176 116606
To order the  nal
Student Text, please use:
ISBN 978-0-17-635528-9
Adam-Carr
Gabber
Hayhoe
Hayhoe
Hayhoe
Sanader
www.nelson.com

Be Science Ready Safe Science in the Classroom Act Responsibly
• Comepreparedwithyourtextbook,
notebook,pencil,andanythingelse
youneed.
• Tellyourteacheraboutanyallergies
ormedicalproblems.
• Keepyourselfandyourworkareatidy
andclean.Keepaislesclear.
• Keepyourclothingandhairoutof
theway.Rollupyoursleeves,tuck
inlooseclothing,andtiebackloose
hair.Removeanyloosejewellery.
• Wearclosedshoes(notsandals).
• Donotwearcontactlenseswhile
doinginvestigations.
• Readallwritteninstructionscarefully
beforeyoustartanactivityor
investigation.
• Donotenteralaboratoryunless
ateacherispresent,oryouhave
permissiontodoso.
• Listentoyourteacher’sdirections.
Readwritteninstructions.Follow
themcarefully.
• Askyourteacherfordirectionsifyou
arenotsurewhattodo.
• Weareyeprotectionorothersafety
equipmentwheninstructedbyyour
teacher.
• Neverchangeanything,orstartan
activityorinvestigationonyourown,
withoutyourteacher’sapproval.
• Getyourteacher’sapprovalbefore
youstartaninvestigationthatyou
havedesignedyourself.
• Payattentiontoyourownsafetyand
thesafetyofothers.
• KnowthelocationofMSDS(Material
SafetyDataSheet)information,
exits,andallsafetyequipment,such
astherstaidkit,reblanket,re
extinguisher,andeyewashstation.
• Alertyourteacherimmediatelyifyou
seeasafetyhazard,suchasbroken
glass,aspill,orunsafebehaviour.
• Standwhilehandlingequipmentand
materials.
• Avoidsuddenorrapidmotioninthe
laboratory,especiallynearchemicals
orsharpinstruments.
• Nevereat,drink,orchewguminthe
laboratory.
• Donottaste,touch,orsmellany
substanceinthelaboratoryunless
yourteacherasksyoutodoso.
• Cleanupandputawayanyequipment
afteryouarenished.
• Washyourhandswithsoapand
waterattheendofeachactivity
orinvestigation.
Symbol Danger
Explosive
CSH-F02-SHOS10SB.ai
Thiscontainercanexplodeifitis
heatedorpunctured.
Corrosive
CSH-F03-SHOS10SB.ai
Thisproductwillburnskinoreyeson
contact,orthroatandstomach
ifswallowed.
Flammable
CSH-F04-SHOS10SB.ai
Thisproduct,oritsfumes,willcatch
reeasilyifexposedtoheat,ames,
orsparks.
Poisonous
CSH-F05-SHOS10SB.ai
Licking,eating,drinking,or
sometimessmelling,thisproductis
likelytocauseillnessordeath.
Practice Safe Science in the Classroom
Workplace Hazardous Materials Information System (WHMIS) Hazardous Household Product Symbols (HHPS)
compressed
gas
flammable and
combustible
material
poisonous and
infectious material
causing other
toxic effects
biohazardous
infectious material
oxidizing
material
poisonous and
infectious material
causing immediate
and serious toxic
effects
corrosive
material
dangerously
reactive material
CSH-F01-SHOS10SB.ai

Grade 10 Author Team
Christine Adam-Carr
Ottawa Catholic School Board
Martin Gabber
Formerly of Durham District
School Board
Christy Hayhoe
Science Writer and Editor
Douglas Hayhoe, Ph.D.
Department of Education,
Tyndale University College
Katharine Hayhoe, B.Sc., M.S.,
Professor, Department of Geosciences,
Texas Tech University
Milan Sanader, B.Sc., B.Ed., M.Ed
Department Head of Science,
Holy Name of Mary Catholic
Secondary School
Senior Program Consultant
Maurice DiGiuseppe, Ph.D.
University of Ontario Institute
of Technology (UOIT)
Formerly of Toronto Catholic
District School Board
Program Consultants
Doug Fraser
District School Board
Ontario North East
Martin Gabber
Formerly of Durham District
School Board
Douglas Hayhoe, Ph.D.
Department of Education,
Tyndale University College
Je Major, M.Ed.
ames Valley District
School Board

Nelson Science Perspectives 10
Evaluation Copy
Vice President, Publishing
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Photo/Permissions Researcher
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Printer
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Senior Program Consultant
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Program Consultants
Doug Fraser
Martin Gabber
Doug Hayhoe
Jeff Major
Authors
Christine Adam-Carr
Martin Gabber
Christy Hayhoe
Doug Hayhoe
Katharine Hayhoe
Milan Sanader
Contributing Authors
Aaron Barry
Doug Fraser
Barry LeDrew
Mike Sipos
Michael Stubitsch
Richard Towler
Judy Wearing
COPYRIGHT © 2010 by
Nelson Education Ltd.
ISBN-13: 978-0-17-635528-9
ISBN-10: 0-17-635528-6
Printed and bound in Canada
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Accuracy Reviewers
Andrew P. Dicks, Ph.D.
Senior Lecturer, Department of
Chemistry, University of Toronto
Michelle French, B.Sc., M.Sc., Ph.D.
Lecturer, Department of Cell and
Systems Biology, University of
Toronto
William Gough,
Professor of Environmental Science,
University of Toronto
Dr. Elizabeth L. Irving, O.D., Ph.D.
Canada Research Chair in Animal
Biology
Associate Professor, School of
Optometry, University of Waterloo
Meredith White-McMahon, Ph.D.
St. James-Assiniboia School Division
Assessment Consultant
Damian Cooper
Nelson Education Author
Catholicity Reviewer
Ted Laxton
Wellington Catholic DSB
Environmental Education
Consultant
Allan Foster, Ed.D., Ph.D.
Working Group on Environmental
Education, Ontario
Former Director of Education,
Kortright Centre for Conservation
ESL/Culture Consultant
Vicki Lucier, B.A., B.Ed., Adv. Ed.
ESL/Culture Consultant, Simcoe
County DSB
Literacy Consultants
Jill Foster
English/Literacy Facilitator,
Durham DSB
Jennette MacKenzie
National Director of Research
and Teacher In-Service,
Nelson Education Ltd.
Michael Stubitsch
Education Consultant
Numeracy Consultant
Justin DeWeerdt
Curriculum Consultant, Trillium
Lakelands DSB
Safety Consultant
Jim Agban
Past Chair, Science Teachers’
Association of Ontario (STAO)
Safety Committee
STSE Consultant
Joanne Nazir
Ontario Institute for Studies in
Education (OISE), University of
Toronto
Technology/ICT Consultant
Luciano Lista, BA. B.Ed., MA
Academic Information Communication
Technology Consultant
Online Learning Principal, Toronto
Catholic DSB
Advisory Panel and Teacher
Reviewers
Aaron Barry, M.B.A., B.Sc., B.Ed.
Sudbury Catholic DSB
Christopher Bonner
Ottawa Catholic DSB
Charles J. Cohen
Community Hebrew Academy of
Toronto
Je Crowell
Halton Catholic DSB
Tim Currie
Bruce Grey Catholic DSB
Lucille Davies
Limestone DSB
Greg Dick
Waterloo Region DSB
Matthew Di Fiore
Duerin-Peel Catholic DSB
Ed Donato
Simcoe Muskoka Catholic DSB
Dave Doucette
York Region DSB
Chantal D’Silva
Toronto Catholic DSB
Naomi Epstein
Community Hebrew Academy of
Toronto
Xavier Fazio
Faculty of Education, Brock University
Daniel Gajewski
Ottawa Catholic DSB
Stephen Haberer
Limestone DSB
Kingston Collegiate and Vocational
Institute, Faculty of Education,
Queen’s University
Shawna Hopkins
Niagara DSB
Chris Howes
Durham DSB
Janet Johns
Upper Canada DSB
Michelle Kane
York Region DSB
Dennis Karasek
ames Valley DSB
Roche Kelly
Durham DSB
Mark Kinoshita
Toronto DSB
Emma Kitchen
Near North DSB
Stephanie Lobsinger-Rayson
Greater Essex DSB
Alistair MacLeod
Limestone DSB
Doug McCallion
Halton Catholic DSB
Nadine Morrison
Hamilton-Wentworth DSB
Dermot O’Hara
Toronto Catholic DSB
Mike Pigeon
Toronto DSB
William J.F. Prest
Rainbow DSB
Mike Sipos, B.Ph.Ed., B.Ed.
Sudbury Catholic DSB
Charles Stewart
Peel DSB
Richard Towler
Peel DSB
Carl Twiddy
Formerly of York Region DSB
Ron Ricci
Greater Essex DSB
Charles Stewart
Peel DSB
Jim Young
Limestone DSB
REVIEWERS
Reviewers iii
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