What is introispection?

Can you freeze cream? Eratosthenes determined the circumference of Earth by conducting an experiment Put his steps in order as they correlate to the scientific method? Where there is no vision their is no hope is a quote from what black American scientist? What does air contain? What would happen if you didn't have to clean your room? Does a bibliography come before thank yous? What is a factor that affects them it come of an experiment? How many quarks in electron? How much is 150 centameters to meters? Where does the word research come? Does sugar dissolve better in cold or hot water? Does 64 quarts equal one pound? What are icobars? Ideas are bulletproof? What do you get when we use the method for separating solutions? What is 1.22 meters in feet? Divergent boundary tectonic plates? How the you use the percent composition in every day? What is necessary to put something into order? What are two ways that cell division is regulated in healthy cells?