Conductivity and Seasoning Experiment

The video tutorial demonstrates an experiment on electrical conductivity using a bulb, pure water, and a substance. Initially, the bulb does not light up, indicating that pure water is a poor conductor. Upon adding a substance, the bulb lights up, showing improved conductivity. The teacher concludes the experiment by asking students to identify the substance from given options: glucose, sucrose, monosodium glutamate, or table salt.

What materials were used in the experiment setup?

• A cup of food seasoning, a cup of filtered water, and a light bulb connected to a circuit

• A cup of vinegar, a cup of mineral water, and a resistor

• A cup of sugar, a cup of distilled water, and a battery

• A cup of salt, a cup of tap water, and a light bulb

What was the purpose of the initial test with filtered water?

• To test the pH level of the water

• To measure the temperature of the water

• To see if the filtered water conducts electricity

• To check if the water could dissolve the seasoning

What was observed when the filtered water was tested for electrical conductivity?

• The light bulb flickered

• The light bulb lit up brightly

• The light bulb exploded

• The light bulb did not light up

What was added to the water to change its conductivity?

• Food seasoning

• Vinegar

• Salt

• Sugar

What was the result after adding the seasoning to the water?

• The light bulb did not light up

• The light bulb lit up

• The light bulb flickered

• The light bulb exploded

What does the lighting up of the bulb indicate after adding the seasoning?

• The water temperature increased

• The water started conducting electricity

• The water became more basic

• The water became more acidic

Which of the following is NOT a possible option for the seasoning used in the experiment?

• Glucose

• Sodium chloride

• Sucrose

• Monosodium glutamate

What was the correct seasoning used in the experiment?

• Sodium chloride

• Monosodium glutamate

• Sucrose

• Glucose