https://www.youtube.com/watch?v=kSw2RUGb-8U&t=47s (sound s)

https://www.youtube.com/watch?v=kOu-zGN_3tM&t=123s (sound d)

https://www.youtube.com/watch?v=SRKV6RccSGE&t=13s (sound t)

https://www.youtube.com/watch?v=CkEryEeV_vc (sound i)

https://www.youtube.com/watch?v=fFZK__fyrVU&t=176s (sound n)

https://www.youtube.com/watch?v=MU7cQOghMos&t=180s (sound p)

https://www.youtube.com/watch?v=0U7leWTD77A (sound g)

https://www.youtube.com/watch?v=06Hx4M1fAHw (sound o)

https://www.youtube.com/watch?v=zlaqCQSFxqo&t=208s (sound c)

https://www.youtube.com/watch?v=v8EOVwGsBPk (sound k)

https://youtu.be/zz0s_30P6Oo?feature=shared

(sound u)

https://www.youtube.com/watch?v=HiRMPHD71nA (Number 3)

https://www.youtube.com/watch?v=MwjibIsXUr4 (Number 4)

https://www.youtube.com/watch?v=6M3IrkyNNT8 (Number 5)

https://www.youtube.com/watch?v=xZ9QSeqk2Vc (Number 6)

https://www.youtube.com/watch?v=YI0bd8Tw8rE (Number 7)

https://www.youtube.com/watch?v=D9zgxdC7tQA&t=119s (Number 8)

https://www.youtube.com/watch?v=6QdwB7ZCyMA (Number 9)

https://www.youtube.com/watch?v=JpXjTQJXmVY (Number 10)

https://www.youtube.com/watch?v=rg6DIjWKbaI (Number 0)

https://youtu.be/qUOQrXmfwDM?feature=shared

(Heavy and light)

https://youtu.be/XAMtgyiUhIo?feature=shared

(Big and small)

https://www.youtube.com/watch?v=Ez7q6_RrMxU

(Empty and full)