♻️ap environmental science review

Tectonic Plates

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

Tectonic plates are large, rigid pieces of the Earth's lithosphere that fit together like a jigsaw puzzle and move slowly over the asthenosphere. These plates are responsible for shaping the Earth's surface through processes like earthquakes and volcanic activity.