Substrand: "8.11 Electricity" (12 periods)

This sub-strand deals with electricity. An object is electrically charged when it has more electrons than protons. Rubbing materials together causes electrons to move between the materials. Charged objects generate electrical force. Electrical charges move in a complete circuit. Most household appliance uses electricity. It is important to take great care when using household appliance to avoid electrical accidents.

Learner's should:

Learner's should:

Learner's should:

8.11.1 know that an object can be electrically charged by friction (k)

8.11.1.1 state that static electrical charge is produced by rubbing different materials together; i. comb and hair ii. ruler and arm

8.11.2 understand that electrons move in a wire in a circuit (u)

8.11.2.1 explain the flow of electrons in a simple electric circuit
8.11.2.2 illustrate the flow of electron using a simple circuit

8.11.3 appreciate that safety is very important in handling of electrical appliances (a)

8.11.3.1 express safety measures in handling household appliances; i. TV and video deck ii. urn or heater iii. radio & amp speakers iv. rice cooker v. hair clipper

8.11.4 be able to show that electricity is very expensive in the Solomon (s)

8.11.4.1 determine the average cost of using electricity for a month in several household in Honiara and other Provincial centers. i. obtain reading from electricity bill ii. obtain reading from “cash power”