1. Series Circuits :

a) The current does not change as it passes through each individual resistor.
This means that it is the same at any particular point on the circuit.

b) The voltage in a series circuit does not remain constant.

4. The voltage drops across each resistor.

5. The total voltage drop across all resistors will add up to the voltage
     off the power source..

6. In parallel circuits current is spread along the various branches. The current in one
     branch will not be the same as in other branches (unless of course all the resistances are
     the same).

7. The sum of the current in each individual branch will add up to give the total
     current of the circuit.

8. The voltage in parallel circuits is actually the same for each branch, and equal to the
     voltage of the power source.

 In series circuits, current is constant, but the
voltage is different, and adds to the total voltage.
 

In parallel circuits, the voltage is constant, but
the current varies, and adds up to the total current in the circuit.