01 / 30BBC Ideas≈ approximate level B23:39–3:45 , .
02 / 30CrashCourse≈ approximate level A29:27–9:33
, ’s .
03 / 30TED-Ed≈ approximate level B24:15–4:22
, , .
04 / 30BBC Ideas≈ approximate level B12:16–2:23
, .
05 / 30Big Think≈ approximate level C18:59–9:01
.
06 / 30BBC Earth≈ approximate level B12:48–2:58
.
07 / 30CrashCourse≈ approximate level A21:58–2:03
, , .
08 / 30Big Think≈ approximate level B29:00–9:02
.
09 / 30Sprouts≈ approximate level A20:08–0:11
.
10 / 30CrashCourse≈ approximate level B14:00–4:06
, .
11 / 30NBC News≈ approximate level B24:24–4:28
, .
12 / 30The School of Life≈ approximate level B22:26–2:32
, .
13 / 30TED≈ approximate level B28:05–8:12
.
14 / 30CNBC Make It≈ approximate level A22:40–2:43
.
15 / 30CrashCourse≈ approximate level B211:47–11:55
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16 / 30NBC News≈ approximate level B24:38–4:45
-- .
17 / 30CNBC Make It≈ approximate level B12:38–2:40
.
18 / 30CrashCourse≈ approximate level A28:19–8:25
, .
19 / 30BBC Ideas≈ approximate level A20:32–0:37
.
20 / 30The Tonight Show≈ approximate level B25:45–5:53
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21 / 30PBS NewsHour≈ approximate level C10:41–0:47
, : , .
22 / 30The School of Life≈ approximate level A20:32–0:35
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23 / 30Lex Clips≈ approximate level A20:35–0:37
.
24 / 30Vanity Fair≈ approximate level A21:04–1:07
, .
25 / 30CrashCourse≈ approximate level C14:52–4:58
, .
26 / 30The Daily Show≈ approximate level A22:46–2:49
.
27 / 30Big Think≈ approximate level B18:03–8:09
- .
28 / 30BBC Ideas≈ approximate level B21:53–2:04
, .
29 / 30Vanity Fair≈ approximate level B24:29–4:31
, .
30 / 30TED-Ed≈ approximate level C14:37–4:48
, .