01 / 9SmarterEveryDay≈ approximate level C15:36–5:41 .
02 / 9Practical Engineering≈ approximate level A27:42–7:48
’s # $ .
03 / 9Practical Engineering≈ approximate level C17:00–7:08
.
04 / 9SmarterEveryDay≈ approximate level C112:26–12:33
, , .
05 / 9Sprouts≈ approximate level B11:07–1:11
.
06 / 9TED≈ approximate level C16:42–6:49
, -- , , .
07 / 9Practical Engineering≈ approximate level A20:42–0:46
, ’s # .
08 / 9Practical Engineering≈ approximate level A21:03–1:10
, ’s .
09 / 9TED≈ approximate level C10:58–1:10
, , : , --, .