How accurate is this experiment: and why and be detailed and tell me Where! (don't worry it's easy)?

Question

http://www.fi.edu/tfi/activity/earth/earth-4.html

Answer 1

That is a very good experiment.  I read the whole thing and found it very interesting.  Make sure your teacher takes care of the car exhaust part and follow all of the safety procedures.  This is an experiment that needs to be done as a class group and explained throughout the experiment by the teacher so you get the full effect and learn more.  This experiment is accurate because it will explain the effects of different gasses and explain effects of potent gasses.