Electrode

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/electrode

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the etymology?Derived from Greek 'ḗlektron' (amber) and 'hodós' (path)
2. What is the historical precursor?Johan Wilcke's electrophore (circa 1762) demonstrated early principles of controlled electrical discharge
3. How does an electrode help electricity move?It lets electrons, ions, or other charged particles move between different materials, so the energy can go into or out of things that don’t conduct electricity by themselves.
4. Why are electrodes important in batteries?In a battery, the electrodes are the places where chemical reactions happen, and they decide how well the battery works, how long it lasts, and how much power it gives.

Charge Carriers: Particles (like electrons or ions) that carry an electrical charge through a material.
Semiconductor: A material with electrical conductivity between that of a conductor and an insulator, crucial in electronics.
Electrolyte: A substance containing free ions that makes the electrical conductor, allowing ions to move and conduct charge.
Redox Reaction: A chemical reaction involving the transfer of electrons between chemical species, fundamental to electrode function.