E major chord	The 2/4  pentatonic scale.
X           X +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  1  |  |  | 2nd fret |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | 2  |  |  3  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  4  | |  |  |  |  |  | +--+--+--+--+--+    X           X |              | 6th string     1st string	+--+--+--+--+--+ |  |  |  |  |  | |  |  |  1  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | 2  2  2  |  1  1 2nd fret |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | 4  4  4  4  |  3 |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  4  | |  |  |  |  |  | +--+--+--+--+--+ |              | 6th string     1st string
E minor 7 b5 chord	The 1/4  minor flat 5 pentatonic scale
X           X +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  1  |  |  | 2nd fret |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | 2  |  |  3  4  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  |  | |  |  |  |  |  | +--+--+--+--+--+    X           X |              | 6th string     1st string	+--+--+--+--+--+ |  |  |  |  |  | |  1s |  |  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  1  1  |  | 2nd fret |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | 2  |  |  2  3  2 |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | |  |  |  |  |  | |  |  |  |  |  | +--+--+--+--+--+ |  |  |  |  |  | 4  4  4  |  4  4 |  |  |  |  |  | +--+--+--+--+--+ |              | 6th string     1st string

Now, as in study number one, you have enough scales to work on all of the pentatonic scale/chord studies in one key.  Try this. We will still be using  the key of E minor.

In E natural minor (the Aeolian mode) the chords are E minor, F# half diminished, G, A minor, B minor, C, and D.

First play the chord then the corresponding scale.

   Em                                
E:----------------3-5-3------------------------------
B:-5----------3-5-------5-3--------------------------
G:-4------2-4---------------4-2----------------------
D:-2--2-5-----------------------5-2---------------2--
A:----------------------------------5-2-------2-5----
E:-3------------------------------------5-3-5--------

   F#m7b5                                
E:----------------5-7-5------------------------------
B:-5----------5-7-------7-5--------------------------
G:-5------4-5---------------5-4----------------------
D:-4--4-7-----------------------7-4---------------4--
A:----------------------------------7-3-------3-7----
E:-5------------------------------------7-5-7--------

   G                                
E:----------------5-7-5------------------------------
B:-8----------5-8-------8-5--------------------------
G:-7------4-7---------------7-4----------------------
D:-5--5-7-----------------------7-5---------------5--
A:----------------------------------7-5-------5-7----
E:-7------------------------------------7-5-7--------

   Am                                
E:----------------8-10-8------------------------------
B:-10---------8-10------10-8--------------------------
G:--9------7-9--------------9-7-----------------------
D:--7--7-10--------------------10-7---------------7---
A:---------------------------------10-7-------7-10----
E:--8----------------------------------10-8-10--------

   Bm                               
E:------------------10-12-10---------------------------------
B:-12----------10-12--------12-10----------------------------
G:-11------9-11------------------11-9------------------------
D:--9--9-12--------------------------12-9------------------9-
A:---------------------------------------12-9---------9-12---
E:-10----------------------------------------12-10-12--------

   C                                
E:-------------------10-12-10-------------------------------------
B:-13-----------10-13--------13-10--------------------------------
G:-12-------9-12------------------12-9----------------------------
D:-10--10-12--------------------------12-10--------------------10-
A:-----------------------------------------12-10---------10-12----
E:-12-------------------------------------------12-10-12----------

   D                                
E:-------------------12-14-12------------------------------------
B:-15-----------12-15--------15-12-------------------------------
G:-14------11-13------------------14-11--------------------------
D:-12-12-14----------------------------14-12------------------12-
A:------------------------------------------14-12--------12-14---
E:-14--------------------------------------------14-12-14--------

   Em (XIV pos)                                
E:--------------------15-17-15-------------------------------
B:-17------------15-17--------17-15--------------------------
G:-16-------14-16------------------16-14---------------------
D:-14--14-17----------------------------17-14-------------14-
A:-------------------------------------------17-14---14-17---
E:-15---------------------------------------------17---------

Make sure to play back down the neck to where you started or (once you're advanced) progress to the top of the neck and then play back down to the lower frets.  In all of these exercises you can play to the top of the neck and down to the lowest frets as long as you stick to the chords that are in the key you are playing:   
E minor, F# minor b5, G, A minor, B minor, C and D.