Earth History Timeline 3 Part Cards Vocabulary Worksheets Bundle

The cards cover important time periods called eons and eras, including:

Hadean Eon: The time when Earth was formed, over 4 billion years ago.
Archean Eon: The period when the Earth’s crust cooled and simple life began, from 4 to 2.5 billion years ago.
Proterozoic Eon: This eon saw the development of more complex life, lasting from 2.5 billion to 541 million years ago.
Paleozoic Era: Known for the rise of fish, land plants, and early amphibians, from 541 to 252 million years ago.
Mesozoic Era: The age of dinosaurs, from 252 to 66 million years ago.
Cenozoic Era: The current era, starting 66 million years ago, known for the emergence of mammals and birds.

Also included are vocabulary worksheets that help reinforce key terms related to these time periods, along with an overview called the “Clock of Eras” that provides a timeline of Earth’s history.

This resource is useful for teaching students about the timeline of our planet in an accessible way. It is suitable for elementary and middle school classrooms.