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The Human Body, Forces and electricity - Coggle Diagram

- - - - Lungs are protected by ribs
        
        The number of times we breathe in and out in 1 minute is called breathing rate
        
        Our breathing rate change depending how much oxygen our bodies need
    - - Air enters the body through mouth and nose
        
        Air goes down the windpipe and into the lungs
        
        The ribs moves upwards and outwards
        
        Chest gets bigger and filled with air
        
        Diaphragm muscle contracts and moves downwards
    - - Diaphragm muscles relaxes and moves upwards
        
        Chest gets smaller and is pushed out of the lungs
        
        The ribs moves downwards and inwards
        
        Air from the lungs moves up the windpipe
        
        Air leaves the body through the nose or mouth
- - - - Heart
        
        Pump blood
        
        When heart muscles contract, you feel heartbeat
      - Blood vessels
        
        Arteries
        
        Thick elastic muscular wall
        
        Carry blood rich with food and oxygen from heart to body
        
        Veins
        
        Thin elastic muscular wall
        
        Carry carbon dioxide from body to heart
        
        Capillaries
        
        Connect arteries and veins
      - Blood
        
        Blood carries food particles, oxygen and waste products (carbon dioxide)
      - Circulatory system of other animals
        
        Fish
        
        2 chambered heart
        
        Frog
        
        3 chambered heart
        
        Bird
        
        4 chambered heart
        
        artery- carry blood from heart to body
        
        vein- carry blood from lungs
        
        Heartbeat and Pulse
        
        The more active you are, the more often your heart beats to supply oxygen and food particles from the blood
        
        can count heartbeat by counting pulse. Pulse caused by pressure
- - - - Causes water to be displaced or pushed out of the way
  - - - An object of a certain mass that has a small, compact shape will sink. An object of the same mass with a larger, flatter shape will float
  - - - The strength of electricity that a component needs for it to work is called the voltage
    - - Series circuit
        
        A circuit which has only 1 electric current path
        
        Electricity need to be shared between the lamps/buzzers
      - Parallel circuit
        
        A circuit which has more than 1 electric current path
        
        Each pathway receives the full circuit voltage
        
        The full strength of battery goes to each lamp/buzzer
      - If the switch is open, the circuit is broken. So, lamps, buzzers will not work