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1st D Define

Reversible Change: Reversible means is capable of being reversed so that the previous state is restored.


Irreversible changes: means not able to revoke or repealed capable of changing or producing a change in one direction only: an irreversible changing reaction 4.


Variables: means not consistent or having a fixed pattern; liable to change.


Hypothesis: Hypothesis is a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

What is the structure of a scientific investigation?


What is the structure of a scientific investigation?


What is the structure of a scientific investigation? The structure of science