This material is called a conductor. When you turn on your lights or television, you use current electricity. When you use a battery-operated toy, you also use current electricity that comes from the battery rather than a wall socket. In current electricity, the electric current results from the movement of electrons from a negatively charged area to a positively charged area. Electricity usually flows through conductors.
Conductors are usually solid things like copper wires.
However, electricity will also flow through some liquids, such as water, and some gases, such as mercury vapour. Electricity is caused by the movement of electrons, the negatively charged particles that move in circles about the nucleus of an atom. In creating a static charge, some electrons are able to move from one atom to the next. If you rub a balloon against your hair, some of the electrons will move from the balloon to your hair. Your hair and the balloon will be attracted to each other because they have different charges.