Understanding density helps you predict whether an object will sink or float.
C
Put the salute into the solvent to create a solution.
B. Subtract those from those in the area from those in or arriving at the area.
Hypotheses must be provable. If scientists cannot prove a "hypothesis" right or wrong, they need to change it to a legitimate hypothesis - something you can prove.
If it is proven wrong, they can change certain aspects of it to make a more specific experiment.
