Plan or experiment A:
Use four different compounds, (Polarity is irrelevant) and dissolve them in water.
Place a current through the solution in the water.
If it dissolves and conducts electricity, then the compounds will result it's ionic. If it dissolves (and doesn’t conduct electricity), it is covalent.
Create some kind of data table on which to record the results of your tests.
Table for Results Experiment A
Compound
Does it dissolve in water?
Does it conduct electricity?
Boiling and Melting point?
Ionic or Covalent?
Experiment B
Use four different