WELCOME TO SCIENCE YEAR 4

Saturday, 15 December 2012

UNIT 2 LIFE PROCESS

LESSON 7: ANIMALS BREATHE

1. Animals need oxygen in the air to keep them alive.
2. Animals have special breathing structures to help them breathe.
3. These breathing structures are known as the breathing organs.
4. Different animals have different breathing organs.


Breathing structure
Animals
Lungs
Monkey, bird, whale, dolphin
Moist Skin
Frog, worm
Lung books
Crab
Trachea structure
Grasshopper, butterfly, cockroach
Gills
Fish, tadpole


5. Diagram below shows the breathing structure of different animals.




The frog breathe using moist skin

The fish breathe with gills

The crab breathe with lung books




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