This blog is basically meant to understand some components given in “Arduino MKR1000 IoT Bundle” as they are not labeled.
What this bundle contains- which components with it , can be seen on element14.com website but here I give explanation on some parts which can be confusing who will use it first time and use as DIY.
Attached pics are self explanatory.
Rest , will have to be careful which end is anode or cathode, or in case of push button which ends connected etc.