Answer:

1. •Pint glass canning jar with lid.

• 3 feet insulated copper wire.

•6-volt battery

•Thin iron wire (unraveled picture hanging wire works great)

2.The bulb will not light because the switch is off (open). No bulbs will light in this circuit because there is no cell or battery. than one route it can take to flow from the cell and back again. ... No bulbs will light in this circuit because the electricity cannot flow around an unbroken loop back to the cell.

3.It can lead into a different hazards/dangers and the examples are be electrocuted or it may starts fire or explotion if the circuit is not properly connected it can affects the electrical flow.

4.a direction of an electric current is by convention he direction in which a positive charge would move. thus,the current in the external circuit us directed away form the positive terminal and towards the negative terminal of the baterry. electrons would actually moved though the wires in the opposite direction.

5. while the answer will vary with the bulb the cost of the energy of a light left on,especially,is fairly low no matter what bulb are you using

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