1. Environmental Science: Unit 5 Human Population Dynamics
By Mrs. Shaw

2. Day 1: Opening Assignment
Before you start the questions below, please check your schedule to be sure you are supposed to be in this class. Also make sure you have 7 classes with a course code. (Senior Seminar and Career are not classes)
What are 3 things that are necessary for a population to increase in size?
What are 2 things that help to balance growth within a population? (things that happen that decrease the size at the same time that it is increasing)
Remember that a POPULATION is the number of the same type of species within a specific area.

3. Day 1: Opening Assignment ANSWERS
What are 3 things that are necessary for a population to increase in size? Space, a reproductive strategy and capability, food (energy) source, access to water.
What are 2 things that help to balance growth within a population? (things that happen that decrease the size at the same time that it is increasing) death and emigration (moving out of an area)
Remember that a POPULATION is the number of the same type of species within a specific area.

4. The Habitable Planet Unit 5: Human Population Dynamics
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5. Human Population Dynamics Video Review Copy the questions and answer
1. What survey is used to calculate the population in a specific area in the U.S.? 2. How is this information used and why is it important? 3. What are some limitations to this survey? 4. Why did the algae in Cape Cod increase and become a problem?

6. Day 2: Opening Assignment
If I wanted to create a graph to show how the human population has changed over time, how would I set it up?
What goes on the x-axis? ________________
What goes on the y- axis? _______________
What type of graph would I use . . .bar or line?

7. Human Population Growth Activity
Day 1 Activity
Human Population Growth Activity
This assignment is due at the end of class today  You can work together BUT each person needs to submit a separate activity sheet

8. Population Clock

9. Day 3 Opening Assignment
In the Human Population Growth graphing activity we did yesterday what did you notice about the time span for doubling time as the population increased?
In Mexico the growth rate is much higher than in the U.S. What factors do you think contribute to this?

10. Day 3 & 4 Activity
Read Chapter 13 and answer the questions using the questions on your own notebook paper using complete sentences.

11. Day 4 Opening Assignment
How has the agricultural and industrial revolution influenced human population growth?
Which is the highest population density of grasshoppers?
A. 35 grasshoppers / 10 square meters
B. 40 grasshoppers / 20 square meters
C. 1 grasshopper / 1 square meter
D. 50 grasshoppers / 30 square meters

12. Overpopulation: The Future of Planet Earth

13. Day 5 Opening Assignment
What is the germ theory and how did it affect human population growth?

14. Unit 5: Human Population Dynamics Student Learning Goals
Students will be able to
Describe the factors that influence human population growth trends
Explain how population growth or decline impacts the environment
Describe how demographers use statistics to make predictions of human population change and its subsequent environmental impact.

15. Lesson 13.1 – History of the Human Population
In British economist Thomas Malthus argued that population growth was not always desirable.
Malthus believed that if the human population outgrew its resources it would lead to such conditions as famine, war, and other human suffering. (1)
To try to solve this problem he proposed that people should marry later in life and have smaller families. (2)

16. Increases in Growth Rate
Scientists estimate that humans evolved on Earth approximately 100,000 years ago.
The first humans were thought to be hunter – gatherers. During this time human population grew slowly for many reasons. Some of them were that it took more energy to get food so starvation, predation, and disease were common and the infant mortality rate was high due to lack of medical knowledge. (3)

17. Increases in Growth Rate
The population size started to increase mainly due to better food storage practices. Food storage reduced the starvation and death rate leading to a population increase. (4)

18. Agriculture
The agricultural revolution was a shift from harvesting wild food sources to producing food through techniques of farming and herding is known as the agriculture revolution. (5)
Farming and the establishment of a social structure helped increase the Earth’s human population. Farming provided an increased and steady food supply which led to increase in populations. Social structure caused a rise in the standard of living which also help with population growth. (6)

19. Industry
The Industrial Revolution which has happened over the past 300 years, influenced population growth in many ways. Technological advances have led to improved food production and distribution, reduced the length of the work day, and provided people with a safer work environment. (7)

20. Health Care
The germ theory is the theory (evidence based) that disease identified bacteria and other microorganisms were the agents responsible for many diseases.
It’s development has led to improved hygiene, sterile surgical practices, better methods of waste disposal and water treatment. (8)

21. Decline in Growth Rate
Three factors that have played a role in population declines over the past 800 years have been diseases like the plague, famine and war. These have all led to decline in growth rates over the past 800 years.

22. Lesson 13.2: Growth and Changing Needs
Measuring Growth Rate
Growth rate is calculated by the following equation: Birth rate – death rate = growth rate (1)
Doubling time is the time it takes a population to double in size. (that is wild! ) (2)
As the human population has increased, the doubling time has decreased because there are more people available to reproduce. (3)

23. Measuring Growth Rate
Other than birth and death rates, other factors need to be considered when measuring growth rate for a specific area. Emmigration (people moving out of an area) and Immigration (people moving into an area) both need to be factored in to measure growth rate for a specific area. (4)

24. Demography
Demography is the science and study of the changing vital statistics in a human population. (5)
Look at the charts that compare the percentages of populations in each age group in 3 different countries. Make 2 quantitative observations about these charts. In Mexico (Kenya) the average lifespan is much shorter. More people in Sweden live longer than in the US. (6)
7. Why do you think the U.S. has a slower growth rate than Mexico? Mexico is a poorer country and therefore has less money for medical care and education on health and reproduction. That has also led to the shorter life span in Mexico. (7)

25. Changing Needs
The least developed nations of the world are expected to experience the greatest growth in the coming decades due to less money, medical care, and education. (8)

26. Lesson 13.3: Challenges of Overpopulation
1. List 4 negative effects of overpopulation. Diseases spread faster, carbon emissions are greater in more populated areas so there is an increase in pollution, diseases related to malnutrition, poor hygiene, and lack of medical care are increased.
2. What is being done in under-developed countries to help control the birth rate? Increasing medical care to provide effective birth control and also education on reproduction.
3. What are 2 ways new technology is working to solve these sustainability problems? New technology is giving us new sources of renewable energy, new strains of crops that are developed through genetic engineering, and other scientific breakthroughs are being discovered to solve some of the space and resource issues that come with overpopulation.

27. How Many People Can Live on Our Planet?

28. Day 6 Opening Assignment
Copy the chart on your paper and fill in
Infectious diseases
Noninfectious diseases
Definition
Examples

29. Infectious vs. Noninfectious
Place the following diseases in the correct column – infectious or non-infectious.
Chicken pox migraines cancer influenza
Hepatitis appendicitis diabetes Strep throat
STD’s heart disease measles plague

30. Disease Transmission Lab
Remember: Even I don’t know who has the disease! 
You can only mix “bodily fluids” with 3 people and you must document who they are.
FOLLOW the DIRECTIONS! Don’t forget to mix thoroughly 

31. Day 7 Activity Overpopulation is NOT the Problem Article Review
Title a blank piece of paper “Overpopulation in NOT the Problem Article Review”. Then read the article and write a 2 paragraph summary.
Be sure to explain these three points;
How does this view of the “problem” differ from what we have been learning about when it comes to overpopulation.
Explain what “Anthropocene” is.
Explain where our focus should be and make predictions on how job careers have to evolve into this new area.
Turn your paper in to be graded when you have finished 