01 / 10Practical Engineering≈ approximate level B15:34–5:40 , .
02 / 10SmarterEveryDay≈ approximate level B23:13–3:21
, , .
03 / 10Practical Engineering≈ approximate level C13:27–3:33
, , .
04 / 10TED-Ed≈ approximate level C12:24–2:31
, , .
05 / 10Practical Engineering≈ approximate level C13:02–3:10
, , .
06 / 10Practical Engineering≈ approximate level C17:00–7:08
: () , .
07 / 10Practical Engineering≈ approximate level C13:47–3:55
- , .
08 / 10Practical Engineering≈ approximate level C14:59–5:05
’s , .
09 / 10Sprouts≈ approximate level B22:58–3:10
, , .
10 / 10TED≈ approximate level B11:46–2:02
, , , .