Dante's Peak- homework help?

hey start in the opening scene where a lava bomb burns through the roof of the truck and lands on Marianne's head, killing her. While you would indeed die if a lava bomb landed on your head, steel has a higher melting temperature than liquid lava, and a solid piece of rock flying through the air would have cooled to the point where it couldn't burn through steel. The scene where the hikers are boiled in the hot springs is also way off base. Hot springs are a result of magma heating rocks which in turn heat the water. Unless the magma came in direct contact with the water, the water would heat gradually enough that any bather would have plenty of time to get out before getting burnt. And if the magma had come in direct contact with the water, the resulting steam explosion would have ripped away half the mountain - end of movie. Likewise, no lake would turn to acid that quickly, and even if it did, it couldn't eat through a metal boat in a matter of minutes, nor would it cause burns that severe on flesh covered in denim, which is a pretty heavy material. Lastly, a pyroclastic flow is hot gas, which will go anywhere it can get in. They couldn't have "hidden" from it in the mine unless they had been able to seal the entrance so that it was airtight, which would have meant they would eventually run out of air themselves. Someone didn't do much research in writing this screenplay.