Science Online Lecture

Science Online Lecture
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Storyboard Text

  • One day, a little boy went to the dentist. The dentist noticed the little boy had not been cleaning his teeth. He told the little boy 'if you don't start cleaning your teeth you'll lose them' and that will be bad for your digestive system!
  • The little boy asked his mum 'but mum, what do your teeth have to do with the digestive system? I thought the digestive system started in your stomach?' The mum replied 'no son, your teeth are very important in your digestive system. They cut up your food so saliva can mix with your food, allowing the different carbohydrates to be digested. They give you energy, so you need them!
  • The boy asked his mum 'what happens next? I thought the food went from the stomach straught into the toilet!'. His mum rolled her eyes at him and explained: 'food is digested in the mouth, stomach and small intestine. The digested food is then absorbed into the bloodstream, and in the small intestine excess water is absorbed back into the body. In the large intestine any undigested food passes out of the anus as faeces when we go to the toilet. The boy exclaimed 'okay mum! I will brush my teeth from now on!'
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