简介
目录
TheEarthbeneathYourFeet
BeforeYouRead
HikingUpOldRagMountain
Section1:WeatheringandErosion
Section2:Earth’sPlates
ReadingaNewspaperArticle
EarthquakeStrikesBam,Iran
AfterYouRead
Glossary
OurChangingPlanet
BeforeYouRead
RaftingthroughMarbleCanyon
Section1:WhatAreWeatheringandErosion?
Section2:PlateMovement
ReadingaNewspaperArticle
MountSt.HelensErupts
AfterYouRead
Glossary
Earth’sChangingSurface
BeforeYouRead
StandingonaFault
Section1:Earth’sShiftingPlates
ReadingaNewspaperArticle
GeographyLessonsPayOff
duringTsunami
Section2:Rocks,Weathering,andErosionAfterYouRead
Glossary
It’sShocking!
BeforeYouRead
BenjaminFranklin’sKite
Section1:MovingCharges
UsingaWebSite
WhyAreAtomsImportant?
Section2:ConductorsandInsulators
Section3:ElectricityMakesThingsWork
AfterYouRead
Glossary
PowerItUp!
BeforeYouRead
OntheRightTrack
Section1:StaticElectricity
Section2:CurrentElectricity
UsingaWebSite
ElectricityTravelsInCircuits
AfterYouRead
Glossary
WhatIsElectricity?
BeforeYouRead
ABrightIdea
Section1:ElectricalCharges
Section2:CurrentElectricity
Section3:MagnetsandElectricity
UsingaWebSite
HowMagnetsBehave
AfterYouRead
Glossary
- 名称
- 类型
- 大小
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