Grade 7 Social Sciences (SS) (Geography & History) Term 3 (Via ... - Free Printable

Worksheet Analysis and Solution

The provided images contain two worksheets. Let's break down the tasks and solve them step by step.

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#### Worksheet 1 (Page 55)
Instructions: Explain what the following terms mean.

1. Birth rate:
- Definition: The birth rate is the number of live births per 1,000 people in a population over a specific period, usually one year. It is a measure of the fertility level of a population.

2. Death rate:
- Definition: The death rate is the number of deaths per 1,000 people in a population over a specific period, usually one year. It reflects the mortality level of a population.

3. Migrate:
- Definition: To migrate means to move from one country, region, or place to another, often permanently or for an extended period. Migration can be driven by various factors such as economic opportunities, political instability, or environmental changes.

4. Malaria:
- Definition: Malaria is a mosquito-borne infectious disease caused by parasites of the *Plasmodium* genus. It is transmitted to humans through the bites of infected female mosquitoes and can cause symptoms ranging from fever and headaches to severe complications like organ failure and death.

5. Emigrants:
- Definition: Emigrants are people who leave their home country to settle permanently or for an extended period in another country. They are individuals who move out of their native land.

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#### Worksheet 2 (Page 56)
Instructions: Look at the following map and answer the questions.

The map shows global population density, with different shades of blue representing varying population densities:
- Dark blue: Highest population density (over 10 million people)
- Light blue: Lowest population density (less than 1 million people)

1. What is South Africa’s birth rate?
- Solution: The map does not provide specific data on birth rates. Birth rates require demographic statistics that are not visible on this map. Therefore, this question cannot be answered directly from the map. Additional data would be needed to determine South Africa’s birth rate.

2. Which country has the most people?
- Solution: From the map, the darkest shade of blue (representing the highest population density) is concentrated in countries like India and China. Among these, China is known to have the largest population globally. Therefore, the answer is:
- China

3. Which country has less than 1 million people?
- Solution: The lightest shade of blue on the map represents areas with less than 1 million people. Countries in this category include smaller nations or regions with low population densities. Examples might include Greenland, Iceland, or some Pacific island nations. Without more specific labels, we can infer that any country in the lightest shade qualifies. For example:
- Greenland (a territory with a very small population)

4. Explain what is meant by the term "Population growth rate."
- Definition: The population growth rate is the rate at which a population increases or decreases over a specific period, usually one year. It is calculated by considering the difference between the birth rate and the death rate, along with migration patterns. A positive growth rate indicates that the population is increasing, while a negative growth rate indicates a decline.

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Final Answers

1. South Africa’s birth rate: Cannot be determined from the map.
2. Country with the most people: China
3. Country with less than 1 million people: Greenland (or similar small nations)
4. Population growth rate: The rate at which a population increases or decreases over time, considering birth rates, death rates, and migration.

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Boxed Final Answer

\[
\boxed{
\begin{array}{l}
\text{1. Cannot be determined from the map.} \\
\text{2. China} \\
\text{3. Greenland (or similar small nations)} \\
\text{4. The rate at which a population increases or decreases over time, considering birth rates, death rates, and migration.}
\end{array}
}
\]