Allow Contibutor to edit Pages but not to publish

We want to be able to give Contributors the same editing capabilities with Pages as they do with Posts.

We want them to be able to go in and edit small amounts of info in existing pages but not to be able to publish them. We only want the Administrators to be able to publish information.

Is there a way to be able to give Contributors this extra access?

Or alternatively can we take away Editors’ rights to publish and make these same users editors?