Hey there! I'm happy to help!
---------------------------------------------------------------------------------
OVERVIEW
The French and Indian war was a large conflict between England and France over who would own the Ohio Territory. The American Indians fought with the French, but the British won.
---------------------------------------------------------------------------------
EFFECTS ON NATIVE AMERICANS
If you were an American Indian and your team lost, that would suck pretty bad, especially because the enemy is now taking over lots of your land. This was especially true for the American Indians. The British cut of the supplies of many native tribes and forced them to obey their rules instead of the rules of the tribe. This also eventually led to Pontiac's War, which was a large native uprising.
---------------------------------------------------------------------------------
EFFECTS ON COLONIES
Before the war, the colonies were very separated. There really wasn't very much unity among them (which is pretty ironic because they became the united states of America). Having to be part of a war with Britain really helped increase the synergy and unity of the colonies, which ultimately prepared them for the Revolutionary War.
---------------------------------------------------------------------------------
I hope that this helps! Have a wonderful day!