Earth Science CK-12 Instructions

Begin by going to

1. Create an account or sign in to
2. At the top menu click on "My Groups." Click the join group button and enter the access code "gp3r4"
3. Once you click the "Join" button, the group should now appear in your list of groups.
4. To access our online textbook, click the Green Hope Earth Science group and select the Green Hope Earth Science link under Shared Resources.

Alternatively you can use the following link if you already have a CK-12 account. Hope Earth Science&accessCode=gp3r4


Once there, my Earth Science FlexBook will be available to you. You may also complete practice exercises and take practice quizzes by clicking the "My Progress" tab.