Neoproterozoic

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/neoproterozoic

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 subdivisions?Tonian, Cryogenian, and Ediacaran periods
2. What is the cryogenian climate?Characterized by extreme 'Snowball Earth' glaciations, potentially global in extent
3. What is the Neoproterozoic era?The Neoproterozoic era was a time from 1 billion to 538.8 million years ago when Earth had big climate changes and new complex life started to appear.
4. When did the Neoproterozoic happen?It lasted from 1 billion to 538.8 million years ago, right before the time when many new animals appeared.

Proterozoic Eon: A vast geological eon preceding the Phanerozoic, characterized by the development of early life forms and continental drift.
Phanerozoic Eon: The current geological eon, marked by the proliferation of complex multicellular life, including animals, plants, and fungi.
Metazoan: An animal belonging to the kingdom Metazoa, characterized by multicellularity and heterotrophic nutrition.
Orogeny: A process of mountain building, typically associated with the collision of tectonic plates and the formation of continental crust.