Age of Earth

Age of Earth

Scientists have tried to determine Earth's age in various ways over time; we now know that Earth is about 4.6 billion years old.

CK-12 (High School)

ESSENTIAL QUESTION:

How did scientists determine the age of the Earth?
STANDARDS:
RST.1 - Analysis & Evidence

DEPTH OF KNOWLEDGE (DOK) LEVELS:

2
Read this assignment in Actively Learn