© OCR 2012 1 What’s the conclusion? A skills development activity for GCSE OBJECTIVES ● Analyse evidence in order to write a conclusion and comment on how confident you are with it. ● Explain how to make your conclusion more secure. ● Describe the effects of alcohol and caffeine on brain activity. © OCR 2012 3 Engage Buzz is more than an alcoholic drink. © OCR 2011 2012 4 Engage It keeps your mind and body in top gear! © OCR 2012 5 Engage Drink Buzz. Keep partying. © OCR 2012 6 Engage © OCR 2012 7 Later: at the production meeting... © OCR 2012 8 Engage Engage Predict what results you will get if the hypothesis is correct Claim Drinking Buzz keeps you alert. Hypothesis The depressant effect of alcohol is cancelled out by the stimulant effect of caffeine. What tests could we do? © OCR 2012 9 Explore We want viewers to believe our results. So we’ll get professional scientists to carry out the tests. When the results come back, YOU draw the conclusions and write a storyboard for the programme. © OCR 2012 10 Explore Hand-eye coordination Reaction times The test A computer shows you a picture, and measures the time until you respond. The lower the time, the faster are your reactions. The Online Reaction Time Test Instructions. When the traffic light turns green click on the big button – quickly! The traffic light to watch The button to click The test You throw a tennis ball against a wall using one hand and catch the ball using the other hand. Your score is how many times you can do this in 30 seconds. Click here to start Method (same for both tests) 120 people will take the test. They will be split into groups. Each person will be given a drink that contains: ●A fixed amount of alcohol (same as Buzz) ●A different amount of caffeine (between 0-150mg). They will not be told what is in their drink. They will wait 20 minutes and then do the test again. © OCR 2012 11 Explore The results are back… Does the evidence match your prediction? © OCR 2012 12 Evaluate Our results seem to suggest that you can drink Buzz and drive safely. Is this the message that we want to give? What else should we do? © OCR 2012 13 Blank page © OCR 2012 Blank page © OCR 2012 Skillup is created by science upd8 6520740852 © OCR 2011 1/12