Powerpoint presentation in the form of the game, Jeopardy! There are 4 categories, each with a mixture of questions about weather factors/patterns. Each category has 5 questions, such as "What is ozone?" If the teacher has access to a smart board (or similar type board) the students can utilize the touchscreen to choose their question, or the teacher could have "team captains" to guide the game. Utilizing a whiteboard to keep track of the score helps reinforce basic addition and subtraction skills.