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electricity
Conductors are materials that allow heat and electricity to pass through easily
Copper wires are widely used for electrical wiring because they are ductile and are good conductors of
iron, gold, silver, brass, steei, nickel and water are also conductors of heat and electricity
Metals are good conductors of heat and electricity. Copper and aluminum are metals. Stainless steel is an
iron-based metal with chromium.
Cooking pots and pans made of metals make cooking faster because they quickly allow heat transfer from
the flame to the food being cooked.
Not all materials are good conductors of heat and electricity. They are called insulators.
Insulators are materials that does not allow heat and electricity to pass through easily.
Materials that are made of plastic, silk, leather, glass, oil
and rubber are insulators.
Learning Task 4
True or False. Write TRUE if the statement is correct and FALSE if not.
1. Aluminum is a good conductor of heat and electricity.
2. All materials can be good conductors of heat and electricity.
3. Metal pots allow the heat flow thoroughly.
4. Iron-based metals are insulators of heat and electricity.
5. Electricity plays an important role in our daily activities.
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