1. POPULATIONS OCTOBER 6, 2015

2. DO NOW TUESDAY 10/6 YOU MAY NOT USE YOUR LAPTOPS. In your groups, record your predictions for the populations of the following areas: Demarest, NJ Bergen County, NJ The State of New Jersey The United States The Earth Please record your answers on a piece of paper. We will check our answers in a few minutes.

3. WHAT WE WILL LEARN Where do most people in the world live? How do scientists measure population? How is the earth’s population changing?

4. POPULATION DISTRIBUTION Land covers about 30% of the earth’s surface, not all of it is used by humans. The most populated continent on earth is Asia with more than half of the world’s population on the continent.

5. POPULATION DISTRIBUTION http://www.prb.org/publications/datasheets/2013/2013-world-population-data- sheet/world-map.aspx#map/world/population/2013

6. POPULATION DENSITY Population Density is the average number of people living in a square mile or square kilometer. It gives us an idea of how crowded a country or region is.

9. URBANIZATION When people leave farms and villages to move to cities it is called Urbanization. Most people move to a city with the goal of finding jobs. Developed countries are industrialized. Developing countries are working toward industrialization.

10. POPULATION GROWTH How fast has the earth’s population grown? 1800- 857 Million 1804- 1 Billion 1900- 1.6 Billion 1991- 5.1 Billion 2005- 6.5 Billion 2015- 7.3 Billion

11. HOW DO WE MEASURE POPULATION GROWTH? DEMOGRAPHERS – are scientists who study populations. -They measure population growth by comparing the birthrate and death rate of a region. - Better health care and living conditions have decreased the death rate, and people are living longer.

12. LETS SEE WHAT WE KNOW ABOUT POPULATIONS Please go to join.quizizz.com and await further instructions from the teacher.