How to show experimentally the dependence of the resistance of a conductor on its length

How to show experimentally the dependence of the resistance of a conductor on its length, cross-sectional area and the substance from which it is made?

To show how the resistance of a conductor depends on the length, its cross-sectional area and on the substance of the conductor, in which different conductors are alternately included in the circuit, for example:
1) nickeline wires of the same thickness but different lengths;
2) nickeline wires of the same length, but different thicknesses;
3) nickel and nichrome wires of the same length and thickness. The current in the circuit is measured with an ammeter, the voltage – with a voltmeter.