Materials List: 
Filtering:
Removing Noise from a Distress Signal
                    
 
         https://www.teachengineering.org/activities/view/csm_filtering_lesson01_activity1
        https://www.teachengineering.org/activities/view/csm_filtering_lesson01_activity1
    
Removing Noise from a Distress Signal
Each group needs:
- computer with Internet access via the Chrome or Safari browser
- 1 pair of headphones
 https://www.teachengineering.org/activities/view/csm_filtering_lesson01_activity1
        https://www.teachengineering.org/activities/view/csm_filtering_lesson01_activity1