01 / 13CrashCourse≈ approximate level A21:28–1:31 , .
02 / 13CrashCourse≈ approximate level B20:54–1:01
, ’s .
03 / 13Sprouts≈ approximate level B10:03–0:12
’s , .
04 / 13CrashCourse≈ approximate level B11:04–1:08
, , ’s .
05 / 13Sprouts≈ approximate level B11:54–2:01
’s , , .
06 / 13CrashCourse≈ approximate level B113:16–13:22
.
07 / 13CrashCourse≈ approximate level B212:30–12:38
, .
08 / 13CrashCourse≈ approximate level B111:57–12:07
, , .
09 / 13CrashCourse≈ approximate level B11:10–1:18
, , .
10 / 13Big Think≈ approximate level B14:28–4:36
, .
11 / 13CrashCourse≈ approximate level B110:07–10:12
, .
12 / 13CrashCourse≈ approximate level B10:48–0:55
, , , .
13 / 13Big Think≈ approximate level C112:59–13:06
, .