ESTES Rocket Science Starter KitEST5302 Rocket Science Starter Kit Discover how you can have FUN with STEM (Science, Technology, Engineering and Math)! Build the "Rocket Science" model rocket, launch with one of the three engines included, and observe as a reaction occurs to make this rocket soar! You will get to be a "Rocket Scientist" as you experiment with the other two included engines to see how high your rocket will go! Powered by standard Estes engines (also sold separately)