Pistical what it is?

What was the major mineral being mined in the west during the 1870s? What kinds of things are taught in high school science classes? How do you test for the presence of methanol? Are germs real even if you can't see them? Why do scientists do experimenal test more than once? What is the job of root hairs? When water put in a jar at night some water gets reduced in morning? How old is our planet? What is the importance of using other peoples ideas in the development of the light bulb? How are Force Acceleration and Mass related? What is something that creates and conducts heat? Why do scientists analyze results of experiments? What are some original ideas for a fourth grade science project? What is a slight rain? Before reading and analyzing a source for research its important to identify? How are heat and temperature different? How many courses to graduate college? How can yu identify the three variables in an experiment? What was Darwin's conclusion about evolution? What constellations can be seen from Australia?