G8 -LIQUID CONDUCTORS
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Lesson duration is: 35 minItems in this lesson
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Slide 2 - Slide
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Slide 5 - Slide
To examine the conductivity of various liquids and differentiate the characters of electrolytes ,non-electrolyte
STRONGLY AGREE
DISAGREE
PARTIALLY AGREE
AGREE
Slide 6 - Poll
Slide 7 - Slide
Slide 8 - Slide
Slide 9 - Link
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Slide 11 - Open question
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Slide 13 - Link
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Slide 16 - Slide
A student makes a circuit as shownHe notices that the bulb does not glow. What changes in the circuit will help to glow the bulb?
A
add a pinch of sugar in the beaker
add a pinch of sugar in the beaker
B
cool the water present in the beaker
C
heat the water present in the beaker
D
add a pinch of common salt in the beaker
Slide 17 - Quiz
A student learns that salt like sodium chloride are introduced in a weakly conducting solution. What option explains the chemical reactions that salts undergo and affect the conductivity of the solution?
A
Salts react chemically with the water particles and decrease the conductivity of the solution.
B
Salts undergo a chemical reaction with the particles of the solution and increase its conductivity.
C
Salts mix with the particles of the weak conducting solution and helps to produce oxygen from the solution.
D
Salts help to make the solution non-conducting by reacting with the particles of the solution.
Slide 18 - Quiz
A student makes an electric circuit as shown.The student notices that the bulb in the circuit is not glowing even though the circuit is complete. His friend advises him to use a LED at the place of the bulb. Why an LED is preferred over bulb in the circuit?
A
LEDs are brighter than bulbs
B
) LEDs consume more energy than a bulb.
C
LEDs eliminate the use of the battery in the circuit.
D
) LEDs can glow even when a weak current flow in the circuit.
Slide 19 - Quiz
Choose the success criteria that you belong to
I can test the conductivity of pure water and explain why it does not conduct electricity.
justify the amount of conduction is directly related to the amount of dissolved ions in the solution.
I can examine conductivity of liquids , investigate the factors that affecting it
I need extra time line to compare electrolytes and non-electrolytes
