Page 34 - FOUNDATIONS FOR LIFE; EXPLORING GOD’S UNIVERSE

Science Y6 – Marvellous Me – lesson 7

THE TRANSPORT SYSTEM

Truth to Teach (Source)

 God has designed our bodies so that every part works together to ensure that every part of the body has what it
needs and that waste products are removed.

 Blood is like a transport system carrying oxygen, energy, hormones, food and waste products from one part of the
body to another.

 Blood is carried in blood vessels and is pumped through the body by the heart.

Way to Work (Means)

1. Review the previous lesson.

2. It may be helpful to let the school’s First Aider teach the lesson incorporating some First Aid into the lesson.

3. Through question and answer establish how much the children know about how oxygen, food and energy is
carried around the body and how waste products are removed.

4. Show pictures of the red and white blood vessels and talk about the function of each one. If blood is viewed
under a microscope it is seen as a yellowish fluid called plasma. The fluid is teeming with clumps of red cells
with white cells in between. The fluid contains oxygen, hormones, waste products, etc but these cannot be seen.

The red cells take oxygen to parts of the body which need it. The white cells battle against germs, sometimes
by carrying them out of the way but, at other times, by giving out anti-bodies which paralyse or kill the germs.

Blood is carried in about 100,000 km of blood vessels. Blood leaves the heart in arteries with thick elastic walls
which widen as the blood passes through them. The blood flows into capillaries then oxygen and food passes
from them into the tissues of the body. Waste products enter the blood and are carried in veins leading back to
the heart. Veins are wide and thin-walled so blood flows through them easily. The main veins of the arms and
legs have valves so that the blood cannot flow backwards.

Carbon dioxide is carried to the lungs and other waste is taken to the kidneys. The kidneys filter the blood so
that it comes out clean. The waste passes out of the body when a person goes to the toilet.

5. Simple First Aid teaching could be given, e.g. how to keep cuts clean and what to do if you have a nose bleed.
Talk about how scars are formed when we have a wound. Various bandaging techniques could be shown and
practised.

6. If time allows, let the children find out more about blood and its function from books and / or the Internet then
write notes and draw labelled diagrams. They could use the information sheet to read about the different blood
groups.

Learning for Life (Fulfilment)

1. The children should have gained more factual knowledge about the blood and how it serves as a transport
system.

2. They should be aware of how to deal with certain aspects of First Aid.

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