01 / 9Practical Engineering≈ approximate level B27:01–7:07 . .
02 / 9Mark Rober≈ approximate level C15:48–5:54
, .
03 / 9SoulPancake≈ approximate level B210:22–10:26
.
04 / 9Kurzgesagt≈ approximate level C15:56–6:03
.
05 / 9Kurzgesagt≈ approximate level C17:33–7:44
, .
06 / 9Tom Scott≈ approximate level B24:22–4:33
, , .
07 / 9Sprouts≈ approximate level C12:18–2:31
, , , .
08 / 9Big Think≈ approximate level C15:34–5:49
, , .
09 / 9Big Think≈ approximate level C15:35–5:49
, , , , 's , , .