3.8 World population

Natural sciences

Grade 8

Biodiversity

Module 9

World population

In the previous learning unit we mentioned that the growth in world population would determine whether sustainable development is possible and that we need to be thoroughly aware of this.

Activity 19:

To interpret information on the world population

• Study the STATISTICS that follows and calculate the natural growth per unit.

WORLD POPULATION GROWTH

PER UNIT OF TIME

PER YEAR: Births: 131 468 233 Deaths: 54 147 021

Natural growth:____________________________

PER MONTH: Births:10 955 686 Deaths:54 147 021

Natural growth:______________________________

PER DAY: Births: 360 187 Deaths: 148 348

Natural growth:______________________________

PER HOUR: Births: 15 008 Deaths: 6 181

Natural growth:_______________________________

PER MINUTE: Births: 250 Deaths: 103

Natural Growth:_______________________________

…..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

• World population reached the 6 BILLION mark on 12 October 1999.

• Visit the web address www.census.gov/main/wwwpopclock.html , as well as csf.colorado.edu/pop

1. What are the latest values on the World POP clock?

2. What will these be by 2050?

Activity 20: TO REFLECT ON OWN ROLE IN ENSURING THE WELL BEING OF THE EARTH

• Write about your impressions of the future of human beings on planet Earth and on the role that you could play.

Assessment of impressions:

Did you provide meaningful impressions of the earth’s FUTURE?

[ LO 3.1]

Assessment

LEARNING OUTCOMES (LOs)

LO 3

SCIENCE, TECHNOLOGY AND THE ENVIRONMENT

Learners are able to show understanding of the underlying connections of technology, the community and the environment.

ASSESSMENT STANDARDS (ASs)

We know this when the learner:

3.1 understands science and technology in the context of history and personal knowledge;

• understands the impact of science and technology.

Memorandum

WORLD POPULATION

• Organise a visit to the computer centre or obtain sources from the internet for the use of the learners.
• Visit the www.census.gov: website
• Graph paper for the exercise.

ASSESSMENT GRID: Transfer values