Share: Title:Ball Launcher: 2018 Engineering Challenge Duration: 2:49 Plays: 279K views Published: 6 years ago Download MP3 Download MP4 Simillar Videos ▶️ 0:33 Science Buddies: Free K-12 Stem Resources 279K views • 8 years ago ▶️ 4:48 Candy Chromatography: What Colors Are In Your Candy? | Science Project 279K views • 2 years ago ▶️ 2:02 How To Make Magnetic Slime | Science Project 279K views • 2 years ago ▶️ 6:53 Diy Mini Drone Part 1: Build Your Drone | Drone Science Project 279K views • 3 years ago ▶️ 2:29 Science Buddies Video For Donaldson $100k Challenge 279K views • 11 years ago