Fill in the blank: Examples of conductors include ___, iron, and steel.

Copper

True or False: An insulator allows electricity to pass through it.

False; an insulator does not allow electricity to pass through it.

What are two common examples of insulators?

Plastic and wood.

Riddle: I block the flow of electric current and come in many forms like plastic and wood. What am I?

An insulator.

Fill in the blank: To prevent electric shock, handle only ___ wires when the circuit is complete.

Plastic-covered

Which type of material is used to facilitate the flow of electric current?

Conductors.

True or False: Copper is an example of an insulator.

False; copper is an example of a conductor.

Pure water does not conduct electricity because it lacks ___ and ___ that can carry an electric current.

Ions and dissolved salts

What is the primary reason that water from natural sources can conduct electricity?

It contains dissolved salts that dissociate into ions, enabling the conduction of electricity.

True or False: Distilled water can conduct electricity.

False; distilled water cannot conduct electricity because it contains no dissolved salts.

Fill in the blank: The human body is approximately ___% water, which allows it to conduct electricity due to the presence of dissolved salts.

65

Riddle: I am clear and essential for life, but without my dissolved friends, I cannot carry a charge. What am I?

Distilled water

What process is used to create distilled water, which results in the removal of all salts?

Boiling water and condensing the steam back into liquid.

Fill in the blank: Water with dissolved salts, such as saltwater, conducts electricity because the salts ___ into ions.

Dissociate

Multiple Choice: Which of the following types of water can conduct electricity? A) Distilled water B) Saltwater C) Pure water D) All of the above

B) Saltwater

Pure water does not conduct electricity because it lacks ___ .

Ions

True or False: Saltwater conducts electricity because the dissolved salts dissociate into ions.

True

The cover of a plug is made of ___ to ensure safe handling and prevent electric shock.

Plastic

Fill in the blank: Electrical appliances use ___ materials for parts that carry electricity.

Conductive

Riddle: I am essential for your appliances to work, but I must be handled with care. I keep you safe from shocks, what am I?

Insulating material

Short Answer: What is the primary function of insulating materials in electrical appliances?

To prevent electric shock by covering parts that users touch.