Hot spring

High school (ages 12+)
Geography

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/hot-spring

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 biological significance?Support extremophile communities; potential origin of life on Earth
2. What is the human historical use?Extensive use for bathing, relaxation, and medical therapy for thousands of years
3. How do hot springs get their special minerals?As the water travels through different rocks, it picks up minerals like iron, silica, or carbon dioxide, so each spring has a unique chemical mix.
4. Why do some hot springs have very low pH, like 0.8?Some springs are acidic because they dissolve sulfate minerals from the rocks, which lowers the pH and makes the water very acidic.

Hydrothermal: Relating to or caused by hot water or steam, especially from beneath the Earth's surface.
Faults: A fracture or zone of fractures between two blocks of rock, allowing the blocks to move relative to each other.
Extremophiles: Microorganisms that thrive in physically or geochemically extreme conditions detrimental to most life.