P3 OCR 21st Century Science 1.0 / 5 based on 1 rating ? SciencePhysicsGCSEOCR Created by: Robert SmithCreated on: 23-04-13 14:34 How much energy is transfered by a 2.5kW kettle left on for 5 minutes? 750,000 J 1 of 2 How efficient is gas energy as a power source? 50% 2 of 2
GCSE OCR 20th Century Science: Unit 4: Ideas in Context: To cull or not to cull? / Cleaning up the Marshall Islands / Call to ban food colourings 0.0 / 5
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