The components included in all three are a scientific question, a procedure, and a conclusion. A scientific question is used to identify the purpose of an experiment, which an investigation can be designed from. A procedure must be present in every experiment so that there is structure to every investigation. Conclusions are always present, because they summarize the results and outcomes of the experiment.
Altitude is height above sea level. The density of air decreases with height. There are two reasons, at higher altitudes there is less air pushing down from above,and gravity is weaker farther from earths center.
