Grade 8
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La durée de la leçon est: 40 minÉléments de cette leçon
Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Diapositive
Slide 4 - Diapositive
Slide 5 - Diapositive
Slide 6 - Diapositive
I
Can explain why pure water does not conduct electricity
Can compare strong and weak electrolytes
Can investigate the factors that affect the conductivity of liquids
Extended timeline to explain conductivity of liquids
Slide 7 - Sondage
Slide 8 - Diapositive
Slide 9 - Diapositive
Slide 10 - Diapositive
Slide 11 - Lien
Slide 12 - Diapositive
Among the following which is an electrolyte
A
Sugar solution
B
salt solution
C
Distilled water
D
Vegetable oil
Slide 13 - Quiz
1)A student makes a circuit as shown .He notices that the bulb does not glow. What changes he can make to make it glow
A
Add a pinch of sugar
B
Cool the water in the beaker
C
Heat the water
D
Add a pinch of salt
Slide 14 - Quiz
2)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?
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 can glow even when a weak current flow in the circuit
B
LEDs consume more energy than a bulb.
C
LEDs eliminate the use of the battery in the circuit.
D
LEDs are brighter than bulbs
Slide 15 - Quiz
Slide 16 - Lien
Slide 17 - Diapositive
Slide 18 - Diapositive
Slide 19 - Diapositive
Slide 20 - Diapositive
I
Can explain why pure water does not conduct electricity
Can compare strong and weak electrolytes
Can investigate the factors that affect the conductivity of liquids
Extended timeline to explain conductivity of liquids
