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Digestion
What happens to food after you swallow it: chewing and saliva, the stomach, the liver and pancreas, the small intestine where nutrients pass into the blood, and the large intestine. Three ages, each with a text, an experiment, a game, a quiz, a printable worksheet and a teacher sheet.
Ages 6–7Where does my food go?The journey of food through your body: chewing, swallowing, the squishy stomach and the long, long intestines. With a stomach-in-a-bag experiment.Ages 10–11The digestive systemThe organs of the digestive system and what each one does: chewing and saliva, stomach acid, bile and pancreatic juice, villi in the small intestine and water absorption in the large intestine. With a fair test on chewing and surface area.Ages 15–16Enzymes, digestion and absorptionMechanical and chemical digestion, the enzymes that digest carbohydrates, proteins and fats, bile and emulsification, the surface area of the small intestine and how nutrients are absorbed. With an amylase and pH investigation.