Fill in each blank with the correct word from the lesson.

1. Metals — especially _______, aluminium, and silver — are the best conductors because they have free electrons that can drift through the material.
2. _______ current is the flow of electric charge through a conductor.
3. All home electrical _______ are wired in parallel for this reason.
4. Water also conducts _______ when dissolved salts are present.
5. A simple circuit contains a source of electrical _______ — such as a battery — connected to components like bulbs or motors through conducting wires.

Choose the best option for each question.

1. Why does a bulb go out when the circuit is broken?
   a) The battery runs outb) The current has no complete path to flowc) The bulb overheatsd) The voltage drops
2. Which material is the best conductor of electricity?
   a) Woodb) Rubberc) Copperd) Glass
3. Why are home circuits wired in parallel?
   a) It is cheaperb) It uses less electricityc) If one appliance fails, others continue workingd) It is simpler to install

Write T for True or F for False in the brackets.

1. The current has no complete path to flow is one of the key concepts in the lesson on Electric Circuits.
2. The battery runs out is the main topic of this lesson.
3. Electric wires are made of copper conductor surrounded by plastic insulation.
4. Electric wires are made of Wood conductor surrounded by plastic insulation.

1. In your own words, explain what Electric Circuits means.
2. List two things you learned from this lesson on Electric Circuits.