Build the Secret Code Vault and keep your treasures safe. Engineering has never been this sneaky! Tinker, create, and innovate with more hands-on discovery from kiwico.com Video Chapters! 00:00 Intro to Secret Code Vault 00:40 Build: Part A 01:33 Stop & Check 01:45 Build: Part B 04:12 Stop & Check 05:59 Stop & Check 07:00 Try it out! 09:24 Stop & Check 10:22 Try it out! 10:48 Troubleshooting 11:24 Build: Part C 12:00 Troubleshooting 14:23 Stop & Check 15:27 Troubleshooting tips 16:51 How the vault works 17:21 Science behind the vault 17:45 Ways to play #KiwiCo #spygear #science #engineering #how-to