Gasoline

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/gasoline

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 gasoline and why does it make cars go fast?Gasoline is a liquid made from crude oil that powers cars, trucks, and planes. It contains a lot of energy and can vaporize quickly, so it pushes the engine’s pistons and makes the vehicle move.
2. How did people learn to use gasoline for cars?In the 1800s, people discovered that gasoline could be separated from crude oil by fractional distillation. Then they built engines that used the fuel, and Henry Ford’s assembly line made cars cheap, so more people used gasoline.

Fractional Distillation: A process used in refineries to separate crude oil into different components based on their boiling points.
Catalytic Cracking: A refinery process that breaks down large hydrocarbon molecules into smaller, more valuable ones, like those in gasoline.
Autoignition (Knocking): Uncontrolled, premature detonation of the fuel-air mixture in an engine cylinder, often indicated by a knocking sound.
Energy Density: The amount of energy stored per unit volume or mass of a substance, indicating how much power a fuel can provide.