This 4th Grade no prep unit is aligned with NGSS 4-PS4-1, and provides versions for Google Slides, Microsoft One Drive and Print. Students explore Waves by reading a close reading on Mechanical Waves and then completing 27 interactive slides. On the slides, students analyze whether the picture shows a transverse or longitudinal wave, what medium the energy traveled through, and then answer a question specific to that phenomenon. Students will then develop their own model of both a tra