These critical thinking activities engage students in problem solving activities including finding patterns, guess and check, writing equations, and making tables using basic operations, place value and other math skills. The problem solving situations all revolve around weather related problems and situations, thus it integrates math, science and language arts. It is geared for students in grades 4-6. Because some of the problems are more involved, it can be used in one sitting or can be broken up and used in more than one sitting. It is especially conducive to group work/group problem solving. An answer key is included. This work is licensed under a Creative Commons Attribution 3.0 Unported License.