B B 30 20 UPSR constant variable( ) responding variable manipulated variable 1 1

1

2 300ml 20C 80C 8

2 2 8 3

3

UPSR

aim hypothesis inference)

conclusion)- 12 3 1 1

2 300ml 20C 80C 8

3

2 3

_________ __________

____________, ________________

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