History of geology

High school (ages 12+)
Environment & Earth

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/history-of-geology

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 unifying theory of geology?Plate Tectonics, explaining continental drift, mountain building, earthquakes, and volcanism
2. What is the key figure in popularizing uniformitarianism?Charles Lyell, whose 'Principles of Geology' profoundly influenced scientific thought
3. What did Aristotle notice about fossils?Aristotle saw fossils in rocks far from seas and thought the Earth's surface had changed a lot over time.
4. Who created the first rules for reading rock layers?Nicolaus Steno wrote the principles of stratigraphy in 1669, saying older layers lie below newer ones, layers were laid flat, and they spread out sideways.

Stratigraphy: The branch of geology concerned with the study of rock layers and layering.
Uniformitarianism: The geological doctrine that existing processes have shaped the Earth throughout its history.
Plate Tectonics: The theory that Earth's outer shell is divided into plates that glide over the mantle, driving geological phenomena.
Deep Time: The vast, almost incomprehensible timescale of geological history, spanning billions of years.