1. Science - Year 3/4B Summer 1
Animals including humans
The Circle of Life
Session 2
Game PowerPoint
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2. Good digestion

3. This is a team game all about Digestion.
On each slide there is a sentence with 3 possible endings. One is low, one is in the middle and the other is high. Your team should discuss the sentence and agree on the ending that you think is correct or gives the best explanation.
If you think the lowest one is correct, crouch with your hands touching the floor. If you think the middle one is correct, stand with your hands held straight out in front of you. If you think the highest one is correct, reach your hands high up into the air.

4. When all the teams have made their choice your teacher will click to reveal the answer. The teams that have picked the correct answer win a cube. The team with the most cubes at the end is the winner.
Good Luck!

5. 1. Digestion begins in …
the intestines
the stomach
the mouth

6. 2. Digestion means … Keeping healthy by eating the right foods
Breaking down food to its basic chemical components so it can be absorbed by the body
Making waste products from food that can be expelled by the body

7. Makes the food taste better
3. Your teeth bite and chew food to break it into small pieces. This also mixes it with saliva which …
Makes it easier to swallow
Makes the food taste better
Keeps your jaw muscles healthy

8. 4. Saliva is a digestive juice that is made in the mouth
4. Saliva is a digestive juice that is made in the mouth. When you smell delicious food, your mouth waters. This is saliva running into your mouth ready to begin digesting food. Saliva is …
Just water that will mix with food and soften it ready to swallow
Water and salt which makes the food taste nice as it is chewed and swallowed
Water and special chemicals called enzymes which begin to break down the food

9. 5. Your tongue is also very important as it …
Helps to move the food around your mouth while you chew and it pushes the food to the back of the mouth when you swallow
Helps to clean your teeth when food gets stuck
Helps you to taste the food better

10. 6. When food is swallowed, it reaches the stomach by travelling down a tube called …
The windpipe
The oesophagus
The small intestine

11. digestion absorption peristalsis
7. The oesophagus has rings of muscle which contract to push the food onwards. This process is called …
digestion
absorption
peristalsis

12. gastric acid saliva glucose
8. Once the food reaches the stomach, it is churned up for several hours. The stomach makes a powerful digestive juice called …
gastric acid
saliva
glucose

13. 9. There is a ring of muscle around the exit to the stomach
9. There is a ring of muscle around the exit to the stomach. It is the job of this muscle to …
To help churn up the food
To keep food inside the stomach until it is ready to move on into the intestines
To keep the stomach healthy

14. the bladder the large intestine the small intestine
10. After a few hours in the stomach, the food is a sloppy mush containing lots of nutrients and water that your body needs. The ring of muscle at the bottom of the stomach opens so it can move into …
the bladder
the large intestine
the small intestine

15. 5, 000, 000 villi in the small intestine
11. The small intestine is a long, narrow windy tube. The inside of the tube is lined with masses of tiny finger-like structures called villi. The nutrients from the mushy food, pass into your blood through the thin walls of the villi.
5, 000, 000 villi in the small intestine
500,000 villi in the small intestine
50, 000 villi in the small intestine
There are thought to be about …

16. 12. By the time the mushy digested food passes out of the small intestine, your body has absorbed all the nutrients into your blood which transports them away to where they are needed. What is left behind is waste as well as some useful salts and water.
pancreas
bowels
It is the job of the large intestine to absorb the water and salts. The small and large intestine are together known as the …
ileum

17. liver gall bladder rectum
13. Once the water and salts have been absorbed into the blood, all that is left is waste which the body needs to get rid of. This is collected in the last part of the large intestine called the …
liver
gall bladder
rectum

18. 14. The muscles in the rectum form the undigested waste into stools
14. The muscles in the rectum form the undigested waste into stools. The scientific name for these is …
faeces
urine
poo

19. the colon the appendix the anus
15. When you go to the toilet, the faeces are pushed out. A ring of muscle at the end of the rectum relaxes to allow them through. This muscle is called …
the colon
the appendix
the anus

20. End of Game Congratulations to the winning teams
Well done everyone – you have learned a lot about digestion!