GOAL: construct a model of the lungs using recycled materials found in your locality.

PRODUCT PERFORMANCE: the model should represent a breathing mechanism process.

MATERIALS: plastic bottle, two small balloons, one big balloon, clay, rubber band (or any materials available at home)

pahingi po ng example please need help, maayōs na sagot po please sa kapatid ko po ito ei, Science 4 ​

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