01 / 30TED≈ approximate level A20:03–0:11 , .
02 / 30WIRED≈ approximate level A26:52–6:59
, , .
03 / 30TED-Ed≈ approximate level B25:03–5:10
, , .
04 / 30Lex Clips≈ approximate level C17:33–7:39
, .
05 / 30CrashCourse≈ approximate level B12:09–2:16
, , .
06 / 30CrashCourse≈ approximate level B22:08–2:14
, “” .
07 / 30TED≈ approximate level B23:57–4:01
"."
08 / 30CrashCourse≈ approximate level B10:44–0:50
, -.
09 / 30Big Think≈ approximate level B13:49–3:56
, .
10 / 30TED≈ approximate level B13:32–3:38
, .
11 / 30Lex Clips≈ approximate level B20:22–0:27
, .
12 / 30TED-Ed≈ approximate level B20:58–1:05
- , .
13 / 30TED-Ed≈ approximate level C12:02–2:11
.
14 / 30WIRED≈ approximate level C11:13–1:24
, .
15 / 30TED-Ed≈ approximate level B20:19–0:32
, .
16 / 30CrashCourse≈ approximate level B12:50–2:58
, .
17 / 30TED≈ approximate level B11:38–1:48
, , .
18 / 30TED-Ed≈ approximate level B24:41–4:54
, ’s , .
19 / 30WIRED≈ approximate level C13:24–3:32
, .
20 / 30BBC Ideas≈ approximate level C11:46–1:57
, , .
21 / 30Lex Clips≈ approximate level C12:19–2:30
, , ?
22 / 30Lex Clips≈ approximate level B26:22–6:32
, .
23 / 30CrashCourse≈ approximate level B21:13–1:22
’s - - .
24 / 30Lex Clips≈ approximate level B10:48–0:54
, , .
25 / 30CrashCourse≈ approximate level C13:04–3:13
, , - .
26 / 30CrashCourse≈ approximate level C14:47–5:00
, - “” , .
27 / 30Lex Clips≈ approximate level B10:26–0:34
, ?
28 / 30TED-Ed≈ approximate level B12:04–2:17
’ — , , , , , — .
29 / 30Sprouts≈ approximate level B17:22–7:34
, , , .
30 / 30Sprouts≈ approximate level B20:00–0:10
, : .