Reactants - The name for the substances that are reacted together, Products - The name for what is produced in a chemical reaction, Water - A reactant during respiration, we drink it, Oxygen - A reactant during respiration, we breathe it in, Respiration - The chemical reaction that releases energy from glucose, Energy - The useful product released during respiration, Lungs - The organ where gas exchange takes place, Alveoli - Little sacs, the site of gas exchange, Trachea - The tube that takes oxygen down from the mouth and nose, Ribs - Bones that protect the lungs, Diaphragm - When we breathe in, this contracts and moves down pulling air into the lungs, Ventilation - Scientific name for breathing, Inhalation - Scientific name for breathing in, Intercostal Muscles - Muscles found between the ribs, Carbon Dioxide - 4% of the gas we breathe out is made up of this gas, Capillaries - Surround the alveoli, supplying them with blood,

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