Spark plug

High school (ages 12+)
Transportation

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/spark-plug

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 a spark plug and why does it matter in cars?A spark plug is a tiny device that creates a small lightning bolt inside a car engine. It starts the explosion that pushes the piston and makes the car move. Without it, gasoline engines wouldn't work.
2. How does a spark plug make a car engine run?The spark plug connects the high‑voltage spark from the ignition system to the fuel‑air mix in the cylinder. When the spark jumps across the gap, it ignites the mixture, causing a controlled explosion that turns the piston.

Spark-Ignition Engine: An internal combustion engine that uses a spark plug to initiate combustion of the fuel-air mixture.
Dielectric Strength: The maximum electric field a material can withstand without breaking down or becoming conductive.
Combustion Pressure: The force exerted by the expanding gases during the burning of fuel within an engine cylinder.