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英国九年级【K9】Science

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英国九年级【K9】Science

 01.Breathingandrespiration

0:0 免费01.Breathing,respirationandgasexchange

0:0 免费02.Thehumangasexchangesystemandbreathing

0:0 免费03.Estimatinglungvolume

0:0 免费04.Adaptationsofthehumanlungsforgasexchange

0:0 免费05.Cellularrespiration

0:0 免费05.Cellularrespiration_1

0:0 免费06.Aerobiccellularrespiration

0:0 免费07.Anaerobiccellularrespirationinhumans

0:0 免费08.Anaerobiccellularrespirationandfermentationinmicroorganisms

 02.Acidsandbases

0:0 免费01.Acidsandbases

0:0 免费02.pHscaleanduniversalindicatorsolution

0:0 免费03.Practicalredcabbageindicatorsolution

0:0 免费04.Chemicalreactionsacidandmetal

0:0 免费05.Metaloxidesandnon-metaloxides

0:0 免费06.Chemicalreactionsneutralisation

0:0 免费07.Chemicalreactionsacidandmetalcarbonate

 03.Magnetsandelectromagnets

0:0 免费01.Magneticpoles

0:0 免费02.Themagneticfieldofabarmagnet

0:0 免费03.Electromagnets

0:0 免费04.Currentthroughanelectromagnet

0:0 免费05.Usingelectromagets

 04.Plantnutritionandphotosynthesis

0:0 免费01.Plantnutrition

0:0 免费02.Photosynthesis

0:0 免费03.Adaptationsofplantsforphotosynthesisabsorbinglight

0:0 免费04.Adaptationsofplantsforphotosynthesisgasexchangeandstomata

 05.Materials

0:0 免费01.Materialsandcompositesincludingmetals,ceramicsandpolymers

0:0 免费02.Structureofpolymers

0:0 免费03.Thereactivityseriesformetals

0:0 免费04.Chemicalreactionsdisplacementofmetals

0:0 免费05.Catalysts

 06.Hiddenforces

0:0 免费01.Gravitationalforceandweight

0:0 免费02.Stretchingsprings

0:0 免费03.Hookeslaw

0:0 免费04.Stretchingrubber

0:0 免费05.Theforceofafloor

0:0 免费06.Levers

0:0 免费07.Turningforces

0:0 免费08.Floating,massandshape

0:0 免费09.Pressure

0:0 免费10.Pressureatdifferentdepthsandheights

 07.Adaptations,competition,naturalselectionandevolution

0:0 免费01.Fossilsshowthatspecieschangeovertime

0:0 免费02.Understandingtimescales

0:0 免费03.Adaptations

0:0 免费04.Competition

0:0 免费05.Heritablevariation

0:0 免费06.Naturalselection

0:0 免费07.Amodelofnaturalselection

0:0 免费08.Evolution

 08.Carboncycleandclimatechange

0:0 免费01.Physicalweatheringanderosion

0:0 免费02.Formationofsedimentaryrock

0:0 免费03.Fossilsandtherockcycle

0:0 免费04.Formationoffossilfuels

0:0 免费05.Gasesintheatmosphere

0:0 免费06.Atmosphericcarbon

0:0 免费07.Thecarboncycle

 09.Waves

0:0 免费01.Waterwaves

0:0 免费02.Soundwaves

0:0 免费03.Speedofsound

0:0 免费04.Hearingsound

0:0 免费05.Ultrasound

 10.Diseaseanddrugs

0:0 免费01.Differencesbetweeninfectiousandnon-infectiousdisease

0:0 免费02.Thegasexchangesysteminhealthyhumans

0:0 免费03.Lifestylediseases

0:0 免费04.Asthma

0:0 免费05.Smoking

0:0 免费05.Smoking_1

0:0 免费06.Vaping

0:0 免费07.Recreationaldrugusedepressants

0:0 免费08.Recreationaldrugusestimulants

0:0 免费09.Solventabuse

 11.Patternsintheperiodictable

0:0 免费01.Groupsofelementsintheperiodictable

0:0 免费02.Group1and2metals

0:0 免费03.Group7(halogens)

0:0 免费03.Group7(halogens)_1

0:0 免费04.Group0(NobleGases)

 12.Resistanceandparallelcircuits

0:0 免费01.Electricalresistance

0:0 免费02.Thicknessofawire

0:0 免费03.Lengthofawire

0:0 免费04.Makingparallelcircuits

0:0 免费05.Voltageinparallelcircuits

0:0 免费06.Loopsofaparallelcircuit

0:0 免费07.Measuringcurrentinaparallelcircuit

0:0 免费08.Comparingseriesandparallelcircuits

0:0 免费09.Mainselectricity

 13.Reproductioninplants

0:0 免费01.Flowerstructure

0:0 免费02.Pollinationandfertilisation

0:0 免费03.Insectsandfoodsecurity

0:0 免费04.Fruitandseeds

0:0 免费05.Factorsaffectingseedgerminationpractical

0:0 免费06.Factorsaffectingseedgerminationdataanalysis

0:0 免费07.Seeddispersalpractical

0:0 免费08.Seeddispersaldataanalysis

 14.Cells

0:0 免费01.Microscopes

0:0 免费02.Cellstructures

0:0 免费03.Specialisedanimalcells

0:0 免费04.Specialisedplantcells

0:0 免费05.Unicellularorganisms

0:0 免费06.Organisation

0:0 免费07.Diffusion

 15.Atomsandtheperiodictable

0:0 免费01.Elements

0:0 免费02.Compounds

0:0 免费03.Chemicalreactions

0:0 免费04.Conservationofmass

0:0 免费05.DevelopmentofthePeriodicTable

0:0 免费06.Metalsandnon-metals

0:0 免费07.Group1

0:0 免费08.Group7

 16.Energy

0:0 免费01.Energystoresandtransfers

0:0 免费02.ConservationofEnergyandEfficiency

0:0 免费03.Conduction

0:0 免费04.Convection

0:0 免费05.Radiation

0:0 免费06.Insulation

0:0 免费07.Powerandenergy

0:0 免费08.Energyinthehome

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