Geology Short clip about Stalactites and Stalagmites and the differences: how to tell. Enjoy! What causes the sediment to look like that? A brief answer from Bruce Malone and Search For The Truth Ministries. Because people chose to believe the flood was a local event, in no time at all, people doubted the whole flood idea and it led to evolution. Watch Bruce Malone explain why most scientists don't view Geology in the right way. What exactly cause the ice age? Was there one, and what evidence do we see?