What is the difference between schicken and senden ?
Feel free to just provide example sentences.

It's a bit difficult to tell. In certain situations it's more natural to say one than the other.

> when you send a person to do a task or get help or assistance "schicken" sounds natural:
Sie hat für ein Artzt geschickt = She sent for a doctor.
Die Mutter schickt ihren Sohn einkaufen = The mother sends her son to buy groceries.

> when you send an email or anything online it's common to see "Senden" written on the button you have click but in speech people will say "Ich habe dir einen Mail geschickt." Same goes for flowers and greetings as well. "Schicken" is more colloquial.

> "senden" has a broader range of meanings, specifically it can mean "to broadcast" In fact, a television channel/station is called "Sender" and programme/show "Sendung" in German
Heute wird The Avengers im TV gesendet. Today The Avengers will be broadcasted on TV.
Der Sender wurde schnell groß. The channel/station quickly became big.
Ich liebe diese Sendung. I love this programme/show.

>With the word "Absender" the person is identified as who sent something.
Der Absender is unbekannt. The sender is unknown.

I think because "senden" is also related to television people tend to use "schicken" to mean "send something to someone".