After your lesson on Rocks and Minerals, review and practice the skills with this Rocks and Minerals I Have... Who Has... game.
Print and laminate the 20 cards and start the game with the card that has "I have a geologist." It might help to print a black and white copy of the cards to show the order in which the game should work.
After using these cards, you can test your students with some other assessments that I have created:
You could also make copies of my Science at a Glance Unit that covers ALL of the 4th grade objectives.