Introduction

To piece together evidence for the existence of Europa's ocean, you will first have to learn these vocabulary words and try to answer the following focus questions:

• How old is the surface of Europa?
• What are Europa's fascinating surface features?
• How were these surface features formed?
• How are Earth's geological processes similar to those on Europa?
• What scientific evidence suggests that a liquid ocean exists or once existed under Europa's icy crust?

This module contains a number of activities that will help you learn more about Europa. Click on the appropriate button in the toolbar (located on the top of each page) to participate in a given activity:

Geology Jigsaw Puzzle
Identify Europa's surface features, understand how they were formed, determine their relative age, and reconstruct the surface of Europa.

Review
Discuss the focus questions for this activity and review your work.

Links
Explore other Web sites about Europa and geology.