how was the grand canyon made

By the Colorado River millions of years ago.

I believe the Bible is true and that the Grand Canyon was formed as a result of the great flood of Noah's time. Google Creation Science or Ken Ham and he has the facts. After Mt St Helens erupted in Washington state in the USA a canyon was formed In 6 hours that has all the strata levels that would seem to be much older but isn't. You can get info on that from Ken Ham also.