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FROM TASTING TO DIGESTING�

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1) Identify the food by taste and smell.

2) Identify and mark the areas of taste such as sweet , sour , bitter & salty.

3) To know what happens to the food we eat.

4) To understand about the digestive system.

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Objectives

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Different types of tastes

SWEET

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SALTY

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SOUR

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BITTER

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PUNGENT

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DIFFERENT TASTE BUDS LOCATED ON THE TONGUE

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Poem on taste of food

Mouth is eating all the things,

Teeth is biting all the things.

But the tongue is tasting everything ,everything, everything.

Ladoos are sweet , lemons are sour,

Neem is bitter , salt is salty

Own taste has everything, everything, everything.

Honey is sweet , tamarind is sour.

Chilies are hot , pickle is salty.

Own taste has everything , everything , everything.

Tongue tastes everything

Gives us many things.

Vitamins , minerals , iron and energy

Which keeps us strong and healthy.

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DIGESTIVE SYSTEM

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DIGESTIVE SYSTEM

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The Digestive System

  • Mouth
  • Oesophagus
  • Stomach
  • Small Intestine
  • Liver
  • Large Intestine
  • Gall Bladder
  • Pancreas
  • Rectum
  • Anus

Let’s find out what happened to your breakfast today!

(Breaking food down into smaller pieces)

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Mouth

  • Teeth

(mechanical breakdown)

    • Incisors used for cutting
    • Canines used for stabbing and holding
    • Molars large surface area used for grinding
  • Saliva

(chemical breakdown)

    • Enzyme (speeds up reactions in the body)
    • Breaks down carbohydrate

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Oesophagus

  • Approximately 25cm long
  • Moves food from the throat to the stomach
    • Muscle movement called peristalsis
  • If acid from the stomach gets in here that’s heartburn.

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Stomach

  • Stores the food you eat
  • Chemically breaks it down into tiny pieces
  • Mixes food with digestive juices
  • Acid in the stomach kills bacteria

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Small Intestine

  • Small intestines are roughly 6 metres long.
  • Enzymes and bile are added.
  • Villi increase the surface area to help absorbtion.
  • Nutrients from the food pass into the bloodstream through the small intestine walls.

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Liver

  • Directly affects digestion by producing bile
    • Bile is an enzyme that helps dissolve fat
  • Processes nutrients in the blood, filters out toxins and waste.
  • Is often called the body’s energy factory

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Gall Bladder

  • Stores bile from the liver
  • Delivers bile when food is digested
  • Fatty diets can cause gallstones

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Pancreas

  • Produces compounds to digest fats and proteins
  • Neutralizes acids that enter small intestine
  • Regulates blood sugar by producing insulin

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Large Intestine

  • About 1.5 metres long
  • Accepts what small intestines don’t absorb.
  • Absorbs water and minerals from the waste matter.
  • Absorption means taking into the body via the blood stream.

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Rectum and Anus

  • Rectum
    • About 15cm long
    • Stores waste before egestion.
  • Anus
    • Muscular ring that controls egestion.

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Write the name of each colored organ:

  • Green:
  • Red:
  • Pink:
  • Brown:
  • Purple:
  • Green:
  • Yellow:

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Answers

  • Green: Oesophagus
  • Red: Stomach
  • Pink: Small Intestine
  • Brown: Large Intestine
  • Purple: Liver
  • Green: Gall Bladder
  • Yellow: Pancreas

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EVALUATION

I) Circle the names of the organs from the following puzzle:

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