Science Year 8 revision 0.0 / 5 ? AllScienceFunNone Created by: lucrayCreated on: 17-05-15 16:35 What carries blood to the heart/ away from the heart? Veins carry de-oxygenated blood to the heart and arteries carry oxygenated blood away from the heart. 1 of 6 Where does respiration happen? In the mitochondria 2 of 6 What is resistance? How hard it is for electricity to flow 3 of 6 What is electrical current? Tiny particles called electrons flowing through wires. 4 of 6 What is an element? A substance that cannot be split up into anything simpler by chemical reactions 5 of 6 What is a compound? Substances that can be split 6 of 6
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