Page 5 - Canadian BC Science 9

8.2 ElectricCurrent ........................................280 FindOutActivity8-2A:LightingItUp .......................280 ThinkAboutIt8-2B:DrawingCircuitDiagrams ................283 FindOutActivity8-2C:PushingElectrons ....................285 FindOutActivity8-2D:MeasuringCurrent ...................286 Conduct an Investigation 8-2E: Make a Model Circuit . . . . . . . . . . .287
8.3 ResistanceandOhm’sLaw ...............................290 Find Out Activity 8-3A: Resist Your Thirst . . . . . . . . . . . . . . . . . . . . .291 ThinkAboutIt8-3B:CalculatingResistance ...................295 Think About It 8-3C: Circuit Diagrams with Resistors . . . . . . . . . . . .296 Conduct an Investigation 8-3D: Resistors and Ohm’s Law . . . . . . . .298
Chapter8Review ...........................................302 Chapter 9 Circuits are designed to control the
transferofelectricalenergy. ...................304
9.1 SeriesandParallelCircuits ...............................306 FindOutActivity9-1A:TurnOuttheLights ..................307 Think About It 9-1B: Is the World Series a Series Circuit? . . . . . . . . .308 Think About It 9-1C: More Things Are Parallel than Lines . . . . . . . .311 FindOutActivity9-1D:ASeriesofLights ....................314 FindOutActivity9-1E:ParallelLights .......................315 Conduct an Investigation 9-1F: Resistors in Series and Parallel . . . . .316
9.2 ThePowerofElectricity .................................320 Find Out Activity 9-2A: Energy Transformation in Resistors . . . . . . .321 FindOutActivity9-2B:TheCostofElectricity .................326 Conduct an Investigation 9-2C: A Current View of Power . . . . . . . .327
Chapter9Review ...........................................330 Unit3Summary ............................................332 Unit3Project:FindingtheBestBattery .........................334 Unit 3 Integrated Research Investigation: Generating
ElectricalEnergy ......................................335 Unit3Review ..............................................336
Unit4 SpaceExploration ...........................340 GettingStarted .........................................342
Find Out Activity: What Do You Know about the Universe? . . . . . . .343 Chapter 10 Scientific evidence suggests the universe
formedabout13.7billionyearsago. ..........344
10.1 ExplainingtheEarlyUniverse.............................346 Find Out Activity 10-1A: A Model of the Expanding Universe . . . . .347 Find Out Activity 10-1B: The Universe in a Spoonful of Sand . . . . . .352 Find Out Activity 10-1C: Investigating the Relative Motion of
GalaxiesintheExpandingUniverse ........................353
Contents • MHR vii