12/4/19- mr Schicks out/video notes

Khan Academy
- you measure the growth of a population by adding the number of babies born, and immigrants coming into the country and subtract the number of deaths and people leaving the country
- you can find the percent of growth rate by subtracting the population from the beginning of the year from the current population and then dividing that by the same number of population from the beginning of the year, last times it by 100
- if the growth rates positive the population is growing, if it's negative the population is decreasing
Kim Smith
- from the Agricultural revolution to the Industrial revolution the population grew by 67,000 people per year, now we gain that amount of people every 6-7 hours
-the exponential growth that we are experiencing is not expected to level off until around 2050
- by 2050 we are expected to have a population of around 9-10 billion people
Why Populations Grow
- Industrial Revolution was the key starting point of the population boom
- the doubling rate can be calculating by dividing 70 by the countries population
- when birth and death rates decrease then the population will slowly increase but then stop rising

I think the most helpful video was the Khan Academy video.  It was the easiest to understand and wasn't boring.  I followed along the whole time and I think the little writings and visual aids helped me a lot.