A favorite creationist mantra these days, and one you especially hear from young earthers, is that creationists and scientists both have the same facts, they just look at them differently. To laypeople that may sound reasonable. The handful of guys at Answers in Genesis look at the Grand Canyon and say it was formed by a flood about 4400 years ago when God got all pissed off at humans. The 24,000 members of the Geological Society of America (and virtually every member of the literally dozens of geological organizations listed at their web site*) look at the Grand Canyon and say it was formed over millions of years by natural processes that continue today.
Same facts; different conclusions. Some of us laypeople often hear these two positions and see them as equally valid positions on either side of a debate. But some of us scratch the surface, and it doesn’t take a very deep scratch to see a significant difference. Scientists do science and creationists don’t.