This is a fun review game where the kids get to throw a koosh ball at the SmartBoard and answer questions! On the main slide, there are multiple magnifying glasses linked to questions about plate boundaries, the rock cycle, rock formation, soil, earthquakes, and volcanoes. The kids toss a koosh ball to try to activate a link and then answer a science question. I usually allow for two tosses at a distance of 10-15 feet to try to activate a link - once they activate a link, it takes them to a questions slide. At this point, they click on the next question in order (1-9). They must answer verbally, and then can receive a prize of your choice if correct (ticket, candy, etc.)I use this before the Changing Earth Unit test and again before the state exams in the spring to review. The kids have a blast!