This term in 6W we have been learning about blood in science. In our first lesson, we enjoyed making a blood smoothie to demonstrate the different components of blood. Why don't you have a go at home?
The ingredients are:
- Strawberries(which represented red blood cells)
- Marshmallows(which represented white blood cells)
- Apple juice(which represented plasma)
- Sprinkles(which represented platelets)
Here are some facts about what our blood consists of
Red blood cells
Red blood cells have the important job of carrying oxygen . These cells pick up oxygen from the air you breathe. Then they travel to the heart ,which pumps out the blood, delivering oxygen to all parts of your body.
White blood cells
White blood cells are part of the germ-fighting immune system. They
are like little warriors floating around in your blood waiting to attack invaders,like viruses and bacteria. You have several types of white blood cells and each has its own special role in fighting off the different kinds of germs that make people sick.
Plasma
Plasma is the largest component of blood. When seperated from the rest
of the blood, plasma is a light yellow liquid. The main role of plasma is to take nutrients, hormones and proteins to the parts of the body that need it.
Platelets
Platelets are tiny blood cells that help your body form clots to stop
bleeding. If one of your blood vessels gets damaged, it sends out signals to the platelets.
Here are some facts that interested 6W pupils:
Robyn: ‘I liked how Miss Walker told us all the ingredients of the blood smoothie and then we mixed them all together in a blender.’
Daya :’I enjoyed learning about what is inside our blood. The fact that interested me the most was that there is just over half the amount of plasma in blood.’
Jessica: ‘I found out that the blood cells need to go to the lungs to get oxygen.’
Can you share any other facts about the circulatory system? Do you know how much blood an adult has in their body?
Written by Zahra and Amelia in 6W.
