WEEK - 4 PENCIL TORCH

1. PENCIL TORCH

SESSION-4
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2. LEARNING OBJECTIVES:

The children will learn on how to create a pencil
torch and application of graphite as conductor.
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3. PENCIL

The pencil lead is made of graphite.
Graphite of the pencil is a conductor.
Wood of the pencil is an Insulator.
WOOD
LEAD
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4. CONDUCTOR

An object which allows heat to pass through it or conduct
electricity.
Examples: Aluminum, Steel, Gold, Copper Wire.
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5. INSULATOR

An object
which
does not allow heat to
pass through it or does not conduct electricity.
Examples: Wood, Plastic, Rubber.
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6. CONDUCTOR & INSULATOR

CONDUCTOR & INSULATOR
Metal Plates
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7. CONDUCTOR & INSULATOR

CONDUCTOR & INSULATOR
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8. LIGHT EMITTING DIODE (LED)

• It converts Electrical energy into Light
energy.
• LED has a polarity.
• Longer terminal
– Positive.
• Shorter terminal – Negative.

9.

Battery :
Battery is a storage device
It converts chemical energy into
electrical energy
Battery has Polarity

10. LIST OF COMPONENTS

• Pencils
• LED
• Cello tape
• Battery 9V
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11.

COMPONENTS REQUIRED
1. PENCIL
2. LED
3.BATTERY
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12. STEPS

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13. LEARNING OUTCOME :

The children learnt the making of pencil torch and
understood the concept of conductor.
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