This interactive is a great resource to have in your course. What does the download include?30 questions pertaining to food chains and energy pyramidsPowerpoint version of interactive activity PDF downloadable version of interactive activityHow do you download this item?Download the zip file to gain access to the Powerpoint and PDF versionsHow do you use the Powerpoint version of the interactive activity?Open the file in PowerPointChoose 'TRANSITIONS' (located at the top of the program)'ON MOUS