Unit 6 - Learning aim C: Safely undertake the project, collecting, analysing and presenting the results

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Name:iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Uniti6:i

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Accessor:i

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii Date:i



Project Implementation and Review
C.P4 - Demonstrate practical skills to assemble relevant apparatus/equipment and materials, carry out safe
working practices.

IndependentiVariable
TheiDistancei(Measurediinicentimetres)
10,i20,i30,i40,i50.i

DependentiVariable
TheiAmountiofiOxygeniBubblesiProducediPeriMinutei(RateiofiReaction)

ControllediVariables
TheiRoomiTemperaturei(Twenty-fiveiDegreesiCelsius)
TheiTemperatureiofitheiWater
TheiCanadianiPondweedi(Elodea),iSizeiandiNumberiofiLeaves
TheiColouriofitheiLEDiLight/TheiLightiSourceiBeingiUtilised
TheiConcentrationiofiCarboniDioxide
TheiConcentration/VolumeiofiWater
TheiConcentrationiofitheiSodiumiHydrogeniCarbonateiSolutioni(45cm3)

EquipmentiUtilisedi

1. Beakeri(250ml)
iAicylindericontaineriwithiaiwideimouth,iandiaiflatibase.iTheyicanibeiusedifori

holding,iheating,iandistirringiliquids.

2. Elodeai(FortyiLeaves)
Useditoitestitheieffectiofilightiintensity.i

3. DistillediWateri(230ml)
Removesiimpurities,iandielectricalichargeifromiionsiandimoleculesiiniwater.i

4. DissectingiScissorsi
Scissorsithatiareiuseditoicutitheipondiweeditoiitsidesiredilength.

5. Forceps
Useditoicarefullyiplaceitheipondiweediintoitheiboilingitube.
iiii
6. MeasuringiCylinderi(50ml)
Ailonginarrowiglassicylinderiisiuseditoimeasureitheivolumesiofisubstances.

7. LEDiLighti
Providesilightisource/lightiintensity.

8. Thermometer
Useditoimeasureitemperatureiofiroom,iandiwater.

9. Ruleri(30cm3)
iUseditoimeasureitheidistanceifromilightisource.

, 10. SodiumiHydrogeniCarbonatei(45cm3)
Suppliesitheicarbonidioxide.i

11. Clickeri
Useditoicountihowimuchioxygenibubblesihaveibeeniproduced.


DataiAnalysis
C.P5i-iAccuratelyicollect,ianalyseiandipresentitheiresultsiobtained.




Duringidurationiofitheiinvestigation,itheiexperimentiwillibeirepeateditwice.iFromitheidataiga
therediviaitheiresults,iaimeaniwillibeicalculated.i


Thisidataiwillibeidisplayediiniaitable,ianditheniillustratedioniaigraph.iTheiamountiofioxygenib
ubblesiproducedi(dependentivariable)iwillibeionitheiy-axis,I and the distance measured in
cm3 (independent variable)iwillibeionitheix-axis.
i

The results will be used to justify whether or not the hypothesis or null hypothesis can be
supported. Furthermore, secondary data will be utilised and compared against the
primary data.

AiTableiDisplayingitheiEffectiofiLightiIntensityioniPhotosynthesis


NumberiofiOxygeniBubblesiProducedi(periminute)

iii Distancei(cm3) iiiii TrialiOne ii TrialiTwo iiiii Mean

iiiiiiiiiiiiiiiiiiiiiii
iiiiiiiiiiiiiiiiiiiiiiii 10
iiiiiiiiiiii 12 iiiiiiiiiiiii 10 iiiiiiiiiiiii 11
iiiiiiiiiiiiiiiiiii ii
iiiiiiiiiiiiiiiiiiiiiiii 20 iiiiiiiiiiiiiii 9
iiiiiiiiiiii 10 iiiiiiiiiiiii 10
iiiiiiiiiiiiiiiiiiiii i
iiiiiiiiiiiiiiiiiiiiiiii 30 iiiiiiiiiiiiiii 6
iiiiiiiiiiiiii 7 iiiiiiiiiiiiiii 7
iiiiiiiiiiiiiiiiii i
iiiiiiiiiiiiiiiiiiiiiii 40 iiiiiiiiiiiiiii 4
iiiiiiiiiiiiii 6 iiiiiiiiiiiiiii 5
iiiiiiiiiiiiiiiiiiiii
iiiiiiiiiiiiiiiiiiiiiii 50
iiiiiiiiiiiiii 2 iiiiiiiiiiiiiii 2 iiiiiiiiiiiiiii 1



CalculationsiforitheiMean

Meani=iiiiiSumiofiTerms
Iiiiiiiiiiiiii iNumberiofiTerms


iiiiiiiiiiiiiiii 10i+i12i=i11iiiiiiiiiiii10i+i9i=i10iiiiiiiiiiii7i+i6i=i7iiiiiiiii6i+i4i=i5iiiiiii2i+i2i=i1
iiiiiiiiiiiiiiiiiiiii2iiiiiiiiiiiiiiiiiiiiiiiiiiiiii2iiiiiiiiiiiiiiiiiiiiiiiiiiiiii2iiiiiiiiiiiiiiiiiiiiii2iiiiiiiiiiiiiiiiiiiii2
iiiiiiiii