For a fun and easy activity to illustrate oodles of scientific principles, look no further than this introductory rocket project. The Straw Rocket Class Pack will help teach projectile motion, center of gravity, initial velocity, introductory aerodynamics, and more. This activity is a great way to teach students the principles of rocketry before going on to engine- or hydrogen-powered rockets. This pack includes enough Precision Straws, clay, and fin material for 30 students to make four rockets each, which enables them to experiment with different weights, straw lengths, and fin designs. Pack includes student instructions. Requires launcher, scissors, ruler, and transparent tape, sold separately.