STEM Project for Middle School—6th, 7th, and 8th grades.Using fishing line, a variety of balloons, and straws of different lengths, students will work with their team to create a balloon rocket. They will test different straws and balloons to determine what makes their "rocket" as fast as possible. This STEM Activity Challenge includes teacher instructions, student instructions (worksheet), grading rubrics, a demonstration video for the teacher, a materials needed sheet, and the related NGSS sta