2Yr 9 Science EPI Builds on your skills from Years 7 – 9 You choose the topic of investigation from the topics Kitchen Chemistry or MachinesYou may experiment with one other personIndividual report!
3Choosing the topic Start with your interests Choose one Focus on some aspect, perhaps something you have been curious aboutTry and refine this into an investigation of cause and effectThink about how you might be able to test the aim in a practical and achievable experiment
4Choosing the topic Suitable topics are like: "finding the effect of x on y"In other words, you are researching the link between cause and an effect.
5Choosing the topic For example: How does the angle of a ramp effect the distance I can get on my skateboard?Cause: type of timberIndependent variable: angle of rampDependent variable: distance
6Choosing the topic Safe and humane experiments only No explosive experimentsNo flammable liquidsNo cruel or unethical experiments
7Choosing the topic1. Start with the area of the topics that interests you most“Hey, I like skateboarding, so ramps interests me the most.”
8Choosing the topic2. Choose one aspect you want to research I am interested in investigating ramps to improve jumping with my skateboard
9Choosing the topic3. Focus on some aspect, perhaps something you have been curious aboutHmm... I wonder what I need to get the speed I want to jump further on my skateboard Now, how will I set it up?
10Choosing the topic4. Try and refine this into an investigation of cause and effectHow does the height of the ramp affect the speed that I will be going when I hit a jump?
11Choosing the topic5. Think about how you might be able to test the aim in a practical and achievable experimentWell.. I can't buy big ramps and test them. That would require too many materials and take way too long.What I could do is make some miniature setups and test it in the lab on a smaller scale.That sounds achievable and practical.
12Clarify your investigation Use the Interactive EPI Designer (see link on wiki)Focus on:Independent variableHow are you going to change this?Dependent variableHow are you going to measure this? How can you get a “reading” that is not subjective and is realisticHow many trials of each type are you going to do to get more reliable results? Can you do them at the same time?Control variablesWhat are they? How are you going to keep them the same each run?
13Apparatus Decide on your equipment: Plan ahead – get all your equipment ready before you startAssess the accuracy of your equipment – what are the sources for error?Keep it simple – a good experiment does not necessarily have to be a complex one with complex equipment.
14Write Submission 1Submission 1 is your detailed plan for your investigation.You should have discussed your EPI with your teacher in broad detail BEFORE submission 1See the assessment sheet for exactly what to include
15What’s in a report?Write each heading in your notes. Under each heading, explain the important things to include in this section.TitleBackground InfoAimHypothesisSafetyMethodResultsDiscussionConclusion
16Some ideasHow does the size of a wheel affect the speed of my scooter?Which brand of cleaner is best at removing stains from the carpet?How does the length of my cricket bat affect how far I can hit the ball?Which brand of soda has the most fizz?
17Important RemindersYou must choose your topic and discuss with your teacherDO NOT start experimenting until you have approval (submission 1 submitted and approval from your teacher)Submission 1 DUE early so get startedSubmission 2 DUE two weeks after you start
18Brain storm NOW Start with your interests Choose one Focus on some aspect, perhaps something you have been curious aboutTry and refine this into an investigation of cause and effectThink about how you might be able to test the aim in a practical and achievable experiment at home