4. DIGESTIVE SYSTEM
Mouth
Food is broken up by the
teeth and mixed with
saliva by the tongue.
Small intestine
There are lots of blood
vessels. Nutrients pass into
the blood.
Anus
The waste, called
faeces, leaves the
body.
Esophagus
Food goes down this
tube to the stomach.
Stomach
Gastric juices make
the food into a thick
liquid.
Large intestine
The waste passes through.
Water goes out into the body
and the waste becomes harder.
6. EXCRETORY SYSTEM
Kidneys
When the blood goes
through here, excess
water and waste products
are dropped off and made
into urine.
Ureters
The urine goes down these
tubes to the bladder.
Urethra
The urine leaves the
body through this
tube.
Bladder
The urine is stored here.
When it is full it sends a
message to our brain.
8. EXPERIMENT TIME!!
• WHAT YOU'LL NEED:
1 ZIP-LOCK PLASTIC BAG
A COUPLE CRACKERS
1 TABLESPOON WATER
ORANGE JUICE
9. CIRCULATORY SYSTEM
Veins
They return the blood
(with waste) back to
the heart.
Arteries
They carry blood (with
oxygen) from the
heart to the rest of our
bodies.
10. HOW OUR HEART WORKS
• HTTPS://WWW.YOUTUBE.COM/WATCH?V=OHMMTQKGS50 ( 1ST PART OF THE VIDEO)
12. NERVOUS SYSTEM Our brain controls our whole body from
your toes to your ears. But How does it
work?
https://www.youtube.com/watch?v=RWst
NQCo3Rk
Our brain Works because it makes some
connections thanks to the neurons.
13. WORKING SYSTEMS
Its nervous and locomotor systems were in action!
1. He saw a dog.
2. Its eyes sent a message
to its brain.
3. Its brain sent an order to
its locomotor system.
4. It ran away!
15. VOLUNTARY AND INVOLUNTARY
MOVEMENTS
• IT´S YOUR TURN, WE NEED TO PROVE THAT THERE ARE VOLUNTARY MOVEMENTS AND INVOLUNTARY
MOVEMENTS ( THINK A COUPLE OF EXAMPLES, WRITE THEM DOWN AND ACT OUT !)
