Do all Christians still think the Earth is 7000 years old?

If they do, they are as thick as two short planks. Earth is about 4.5 billion years old, and Homo Sapiens have been around for about 300,000 years.

Of course not. Only fundamentalist Protestants make such ridiculous claims, because of their misinterpretations of the Bible.  Jesus Christ founded one Church, said it was to remain one, and promised that one Church the fullness of God's truth. As a result, the teaching of that one Church (which includes well over half of all Christians) never conflicts with natural truths revealed by science. Truth cannot conflict with truth.

no they do not.  We know it took billions of years to make this planet habitable.  But humans have only been here 6040 years.

Do you still think that all christians think that?

Most estimates range from 6K to 10K, but we never lose any sleep over it. 

Are you so sure it was the Christians who said that?

No one knows his age well, not even the Atheists know!

No, most mainstream churches do not dispute the scientific age of the Earth.

The resident Methodist here on Y!A 

seems to think that the Earth is only 6,000 years old. 

Go figure.

I think the Ark Encounter would be proof enough that they don't.  Ken Ham had imagined his site would lead to followers of Jesus across the nation flooding in for an opportunity to experience his interpretations of the young Earth myth.  Instead, the site is a joke.  Most Churches pass off what's taught there as absolute ignorance of God's creation, and these days it seems as if the majority of attendees are just atheists looking to mock it on YouTube.

The majority never have.  Until the 18th century, the Churches openly mocked anyone who took the Bible at face value rather than allegory.  Today, of all the Christians on the planet, only something like 3 in 10 believe in such things.