ÁGUA SALGADA CONDUZ ELETRICIDADE? (experimento) / Sal Water Circuit

Summary

In this experiment, you’ll explore how water and salt conduct electricity. The process involves building a simple circuit with a light bulb, plug, and socket. By first testing distilled water, you’ll observe that it doesn’t conduct electricity on its own. However, once salt is added, the water becomes conductive, allowing the circuit to power the light. This experiment demonstrates the importance of ions in the conduction process. Be sure to keep the wires from touching while immersed in the water, and check the link for a full explanation.

Takeaways

• 😀 The experiment demonstrates how water and salt conduct electricity.
• 😀 The materials needed for the experiment include a light bulb, plug, light socket, distilled water, and salt.
• 😀 Start by screwing the light bulb into the socket and connecting wires from the plug to the socket.
• 😀 Use electrical tape to secure the connections, and leave the remaining wires free for later use.
• 😀 Plug in the circuit to check if the light bulb is working before continuing.
• 😀 To test the circuit, touch the remaining wires together, and if the light turns on, the circuit is functioning.
• 😀 After ensuring the circuit works, unplug it and prepare the distilled water and salt for the next step.
• 😀 Immerse the two remaining wires in the distilled water without letting them touch each other.
• 😀 Distilled water alone won't conduct electricity enough to light the bulb because it lacks sufficient ions.
• 😀 Add salt to the water and test the circuit again. The light bulb should turn on, proving salted water conducts electricity.
• 😀 Remember, the two wires must never touch each other when submerged in the water to avoid short circuits.

Q & A

What materials are needed for this experiment?

You will need a light bulb, a plug, a light socket, a cup of distilled water, salt, and electrical tape.

Why is distilled water used in the experiment?

Distilled water is used because it is pure and lacks ions, which means it doesn't conduct electricity on its own.

What is the purpose of screwing the light bulb into the socket?

The light bulb needs to be securely connected to the socket to complete the circuit and light up when electricity flows.

What does the first step of the circuit construction involve?

The first step involves screwing the light bulb into the socket and connecting one wire from the plug to the socket using electrical tape.

Why should the other two wires remain free initially?

The other two wires remain free for later use when the circuit will be tested with the distilled water and salt solution.

What happens when the wires touch each other during the circuit test?

If the wires touch each other while plugged into the outlet, the light bulb will turn on, indicating the circuit is complete and electricity is flowing.

Why doesn't the light turn on when the wires are placed in distilled water?

The light doesn't turn on because distilled water lacks enough ions to conduct electricity.

What effect does adding salt to the water have in the experiment?

Adding salt to the distilled water introduces ions, which allows the water to conduct electricity, turning the light bulb on.

What is the significance of ensuring the wires do not touch each other when immersed in the water?

The wires must not touch each other while in the water, as this could cause a short circuit and interfere with the experiment.

What does the experiment demonstrate about the conductivity of saltwater?

The experiment demonstrates that saltwater can conduct electricity due to the presence of ions that enable the flow of electrical current.