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DIGESTIVE AND EXCRETORY SYSTEM

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Created on February 13, 2023

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Transcript

NATURAL SCIENCE

UNIT 3 DIGESTION AND EXCRETORY SYSTEMS

INDEX

1. Healthy habits

2. Healthy diet

3. Nutrients

4. Digestive system

5. Excretory system

ViDEO

Healthy habits

HYGIENE

Wash your hands before you eat, after you use the toilet.

Have a shower every day.

Brush your teeth.

Healthy habits

EXERCISE

Do some exercise every day.

Stretch and warm up your muscles.

Healthy habits

REST

Go to bed early.

Sleep 10 hours every night.

Healthy habits

DIET

Eat food with lots of fats or sugar only on special occasions.

Drink plenty of water.

Eat lots of fruit and vegetables.

Healthy habits

ENJOY YOUR FREE TIME

Don´t watch TV or play videogames for hours.

Do different activities with your family and friends.

ViDEO

Healthy diet

A healthy diet is a balanced diet. There are 5 types of nutrients:

  • Carbohydrates
  • Minerals and vitamins
  • Proteins
  • Fats

nutrients

Fats

Proteins

Minerals and vitamins.

Carbohydrates

They build a store of extra energy but…be careful! Don´t eat too many!

They help us grow, build muscle and make us strong.

They help us to stay healthy, grow and protect us from illness.

They give us energy.

ViDEO

digestive system

1) We take in food through our mouth.

2) The oesophagus is a long tube . Food goes down here to the stomach.

3) The stomach is like a bag. The food mixes with gastric juices , that break down the food.

4) The small intestine is a very long thin tube . There are lots of blood vessels here and the nutrients pass into the blood.

5) The large intestine is a wide tube . It connects to the anus to expel the waste from our body.

EXPERIMENT TIME

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Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat elit amet.

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excretory system

It helps our bodies to eliminate excess water and waste products.

1) The kidneys filter the blood and separate the water and waste products and turns them into urine.

2) The ureters are long tubes where the urine goes down to the bladder.

3) The bladder is like a bag. It collects the urine . When it is full, it is time to go to the toilet.

4) The urethra is a short tube . Urine goes down here and leaves our body.

It is time to study!

Difficult roads lead to beautiful destinations!