Are humans conductors of electricity?

During a recent P5 Science class, a pupil asked me, "Teacher Serena, are humans conductors of electricity?"

This video will demonstrate that humans are conductors of electricity.

Watch the video carefully.

Observations:
When both hands are used to grip the Energy Stick with a hand on each silver ring, there are flashing lights and a sound is heard. When the person lets go of one hand, the Energy Stick stops working.

Science Concepts:
The Energy Stick is a battery-powered circuit tester. Electricity flows because of a flow of free electrons moving from atom to atom through a material. An electrical conductor allows a current to flow through it.

Since our body is mostly water and there are water and minerals on our skin, our body can be a conductor of electricity but a poor one. The weak current flows from one silver ring onto one hand and then across the surface of our skin to the hand and onto the other silver ring. This complete loop is called a closed circuit and an electric circuit can flow through the closed circuit. Hence the light in the Energy Stick lights up.