The nine signs given to Musa عليه السلام are generally understood as:
1.) The staff turned into a serpent
“So he threw it down, and it became a serpent, moving quickly.” (20:20)
2.) The hand coming out white
“And draw your hand close to your side; it will come out white without harm.” (20:22)
3.) Flood
4.) Locusts
5.) Lice
6.) Frogs
7.) Blood
“So We sent upon them the flood, the locusts, the lice, the frogs, and the blood as distinct signs…” (7:133)
8.) Drought
9.) Shortage of fruits/crops
“And We seized Pharaoh’s people
with years of famine and shortness of fruits…” (7:130)