Type of Engineering: Mechanical
Goal: teach students to build a car powered by rubberbands and a propeller.
Grade levels: 3rd - 8th grade
 

 
EF Toolbox includes a kit with all project materials. (except hot glue gun)
 
EF Toolbox also comes with: 
How to build instructions with photos
Factsheet explaining the science behind the project 
Note to parents explaning project