Qual é a diferença entre that's why e no wonder ?Podes indicar apenas respostas exemplo.

"That's why" is an expression telling you why something is a certain way. You could also say "because" instead.

"It is cold, that's why I am wearing a hat"
("Because it is cold, I am wearing a hat.")

"I bought an expensive car, that's why I have no more money."
("Because I bought an expensive car, I have no more money.")

"You eat like a pig, that's why you are fat!"
("Because you eat like a pig, you are fat!")

"I sleep so little, that's why I'm always tired."
("Because I sleep so little, I am always tired.")

"No wonder" expresses some sort of realization. You realize something is a certain way, and why it is that way.

"It' is cold, no wonder you are wearing a hat!"
"That car is expensive, no wonder you have no more money!"
"You eat like a pig, no wonder you are fat!"
"I sleep so little, no wonder I am always tired."