Sexually Transmitted Diseases

Topics: Chemistry, Acid, Chemical compound Pages: 106 (35671 words) Published: June 4, 2013
Science For Living Notes (Compiled)

Table of Contents

Unit 1 Measurement5-10
Unit 2 Matter11-48
Unit 3 Basic materials for maintaining life
Other biomolecules of life72-76
Unit 4 Energy in the Community
Simple Machines93-99
Unit 5 The Physical Environment
Weather and Climate100-113
Unit 6 Living things in the Environment
Plant and animal cells129
Eukaryotes vs prokaryotes130
Structures and functions133-137
Onion and cheek cells150-151
Ecological study154
Seed structure and germination155-157
Reproduction in plants158-165Sexually transmitted diseases166-176 Birth Control and contraceptives177-185
Effects on population growth186-187
Drug and drug abuse188-191
Man’s impact on the environment192-199
Reproduction in man200-201

Many people live their lives without having a clue about certain things pertaining to science and its impact on living. They remain dark when it comes on to having an understanding of how the scientific things of this world actually work. This portfolio was done as a means of fulfilling the requirements for the course Science for Living, but it will also prove highly beneficial to any reader that happens to read it. In every sphere of life, the recognition and appreciation of the application of scientific principles are of utmost importance. If the resources of our world are to be properly utilized for the enhancement of man’s life, then an understanding of the responsibilities that human beings have to each other and their environment must be developed. Embedded in this portfolio is a wealth of information covering many aspects of science and will therefore play a major part in preparing citizens who can survive in the changing world and contribute to its development. No reader that happens to read this portfolio will leave without gaining something highly beneficial. Therefore, please read, and be informed and enlightened.

The Scientific Method
TheScientific method refers to a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. To be termed scientific, a method of inquiry must be based on gathering observable, empirical and measurableevidence subject to specific principles of reasoning. A scientific method consists of the collection of data through observation and experimentation, and the formulation and testing of hypotheses.Scientific researchers propose hypotheses as explanations of phenomena, and design experimentalstudies to test these hypotheses. Steps in the Scientific Method

1. Define the question
2. Gather information and resources (observe)
3. Form hypothesis
4. Perform experiment and collect data
5. Analyze data
6. Interpret data and draw conclusions that serve as a starting point for new hypothesis 7. Publish results
8. Retest (frequently done by other scientists)

Metric Units
Metric Units are scientific units of measure, preferred in most countries. These are usually: length, volume, mass density, weight, temperature, time, force, including mille-, centi-, and kilo. In the early metric system, there were several fundamental or base units, the grad or grade for angles, the metre for length, the gram for mass and the litre for capacity. Quantity measured| Unit| Symbol| Relationship|

Length, width,
distance, thickness,
girth, etc.| Millimeter| mm| 10 mm| =| 1 cm|
| Centimeter| cm| 100 cm| =| 1 m|
| Meter| m|  |  |  |
| Kilometer| km| 1 km| =| 1000 m|
(“weight”)*| Milligram| mg| 1000 mg| =| 1 g|
| Gram| g|  |  |  |
| Kilogram| kg| 1 kg| =| 1000 g|

References: Chinnery, L. et al (2005). CXC Biology, New Edition. Cambridge, UK: Cambridge
University Press.
Hopkins, J. et al (1997). Exploring Physical Science, New Edition. New Jersey,
USA: Prentice Hall Inc.
Avision, H. John (1988). Physics for CXC. Thomas Nelson and Son Limited.
Charles, H. Hermiler (1987) Physical Science. Culumbus, Ohio.
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