![Page 1: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/1.jpg)
![Page 2: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/2.jpg)
Planning 3-6
Independent Variable____________________________
Dependent Variable____________________________
Control Variable
____________________________
How are you going to control this variable____________________________________________________________________________________
Control Variable
____________________________
How are you going to control this variable____________________________________________________________________________________
Control Variable
____________________________
How are you going to control this variable____________________________________________________________________________________
Control Variable
____________________________
How are you going to control this variable____________________________________________________________________________________
Why did you choose this variable____________________________________________________________________________________Why did you choose this variable____________________________________________________________________________________
![Page 3: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/3.jpg)
Planning 3-6
HazardHarm
o_______________________ High /Low______________________o_______________________ High /Low______________________o_______________________ High /Low______________________o_______________________ High /Low______________________
Step by Step Plan
How can I reduce the Hazards:o_________________________________________________________ _________________________________________________________o_________________________________________________________ _________________________________________________________o_________________________________________________________ _________________________________________________________o_________________________________________________________ _________________________________________________________
![Page 4: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/4.jpg)
What science do I need to do this investigation?______________________________________________________________________________________________________________________________________________________________________________
Planning 3-6
I think my results will look like this:______________________________________________________________________________________________________________________________________________________________________________
I think my results will look like this because (use your scientific knowledge: __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Scientific Knowledge____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
![Page 5: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/5.jpg)
Independent variable (what you change) UNITS!
Dependent variable (what you measure) UNITS!
Test 1
Test 2 Test 3 Mean
Observing 3-6 : Help Sheet
Labelled with the INDEPENDENT VARIABLE and UNITS
Y
X
Labelled with the DEPENDENT
VARIABLE and UNITS
Table of Results
Graph
Your teacher will help you with scales, and if
you should draw a bar or line graph
![Page 6: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/6.jpg)
Analysis 3- 6
My graph shows that the bigger/smaller_________________________was the bigger/smaller____________________________________was.
On your graph circle any odd (anomalous) results
What does your graph show:__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Do you think your results are any good?____________________________________________________________________________________________________________________
What scientific evidence do you have that supports your results?__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Was your prediction right or wrong?____________________________________________________________________________________________________________________
Did you have any results that where not consistent with the rest of your results?____________________________________________________________________________________________________________________
Why do you think this?____________________________________________________________________________________________________________________
![Page 7: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/7.jpg)
Evaluation 3- 6
Did you think the experiment was any good?______________________________________________________________________________________________________________________________________________________________________________
Where your results reliable (could you reproduce these results again)______________________________________________________________________________________________________________________________________________________________________________
Could you improve your plan in anyway________________________________________________________________________________________________________________________________________________________________________
Describe the practically how you would do this improvement __________________________________________________________________________________________________________________________________________________________________
Could you improve your plan in anyway________________________________________________________________________________________________________________________________________________________________________
Describe the practically how you would do this improvement __________________________________________________________________________________________________________________________________________________________________
My are or are not what I expected __________________________________________________________
Why do you think your results are valid ( what you expected) ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
![Page 8: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/8.jpg)
Planning 5-7
Plan
State what your independent Select a suitable range for your independent variable (how many changes are you
going to make); Explain why you have chosen your independent
State your dependent variable Explain why you have chosen your dependent variables; Explain how you are going to take your measurements
Say why you have decided not to investigate any other variable; List all of the control variables;
Explain how you are going to control all the of these variables Plan how you are going to control these variables Explain if you think you are going to have difficulty controlling any of these
Variable How it is going to be controlledIs it hard to control
Sun light Close all the blinds in the roomSome light will still get
into the room though
the door
Write a step by step plan of how you are going to carry out your practical.
Safety
List the hazards that doing your practical pose What harm can these hazards cause How can you reduce the risks Rank your hazards in order of most hazardous to least hazardous :
Hazard Harm Reduce Risk1. Acid, can burn your skin or eyes, w ear goggles and know where the eye wash is in the Leading to burns or lose of room, if you get acid on your hand you need to wash it sight
off straight away
Hypothesis
What scientific knowledge do you need to know for this investigation? What do you think your results will look like? Why do you think your results will look like this, use scientific knowledge to answer this
question.
![Page 9: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/9.jpg)
Observing 5-7
Y
X
Table of Results
Graph
![Page 10: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/10.jpg)
Calculating GradientX
Y
Line of Best fit Gradient = length of Y/ length of X
Analysing gradient e.g. My results have a positive correlation shown by a gradient of 0.4
Plotting your graph using error bars1. Plot the average2. draw a line of best fit3. Plot test 14. Plot test 25. Plot test 3 6. Draw a Key7. Draw Error BarsAnalysing Error BarsError bars that do not over lap show a real difference in data;
Observing Level 6-7 Help Sheet
REAL DIFFERENCE
Line of Best fit
Gradient is a Ratio (No Units)
![Page 11: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/11.jpg)
Analysis 5 – 7
Describing your graph:State what your graph looks like
Was is a positive or negative correlationUse data from your graph to describe the pattern
As the temperature when up the reaction happened twice as quickly or by the end of the experiment it had increased from 10 oC to 20 oC
Where their any odd (anomalous) resultsDid the anomalous results effect you patternExplain how any anomalous results could have effected your
averageIs X directly proportional to Y
Conclusion How did your experiment go?
What evidence do you have that your experiment went well or notExplain how your results support or don’t support your predictionHow have your results enabled you to answer the original questionWhat results are not consistent with the rest of your results
Can you suggest using scientific reasons why these results are anomalous
Do the odd results make you think that the results are a sign that the theory is not correct
Can you offer an alternative conclusion to the one you have already suggested?
Which one do you think is more likely.
![Page 12: Planning 3-6 Independent Variable ____________________________ Dependent Variable ____________________________ Control Variable ____________________________](https://reader036.vdocument.in/reader036/viewer/2022082818/56649eac5503460f94bb20dd/html5/thumbnails/12.jpg)
Evaluation 5 – 7Describe which specific results are reliable.Make a practical suggestion of how to improve your experiment
For a level 6 you will need to do a detailed practical suggestionFor level 7 you will have to write a detailed plan of how to improve
your experimentAre your conclusions valid (what you expected to get)Why do you think your results are valid?How might your improvement make your results more valid?Describe any further investigations / experiments