1. PARAGRAPH AND ESSAY WRITING
Gold, a precious metal, is prized for two important characteristics. First of all, gold has a lustrous beauty that is resistant to corrosion. Therefore, it is suitable for jewelry, coins, and ornamental purposes. Gold never needs to be polished and will remain beautiful forever. For example, a Macedonian coin remains as untarnished today as the day it was minted twenty-three centuries ago. Another important characteristic of gold is its usefulness to industry and science. For many years, it has been used in hundreds of industrial applications. The most recent use of gold is in astronaut suits. Astronauts wear gold-plated heat shields for protection outside spaceships. In conclusion, gold is treasured not only for its beauty, but also for its utility.

2. The topic sentence:
Topic : Gold
Controlling idea : two important characteristics

3. Supporting sentences:
First of all,
For example,
Another important
The most recent use

4. The concluding sentence
In conclusion,

5. Unity: Discuss only one main idea in one paragraph
Coherence: Easy to read and understand

6. Topic sentence:
a complete sentence
contains both topic and controlling idea
the most general statement in a paragraph
not too specific or too general
do not include too many unrelated ideas

7. Concluding sentence
Signals the end of a paragraph.
Summarize the main point of the paragraph.
It gives a final comment on the topic

8. End of paragraph signals
Finally, as a result, in conclusion, in summary, therefore, thus, indeed, in brief, In short, …

9. The Magic Slurry Water
Slurry water can increase the strength of gypsum product in two ways. Firstly, the dihydrate particles in slurry water will act as extra nuclei besides the main nuclei in gypsum setting process. Secondly, the particles will fill the spaces among the crystals which can enhance the interlocking between them. Both conditions were tested by ultra sound examinations producing short waves in dense gypsum mass. In conclusion, slurry water will increase the amount of nuclei and raise the density of gypsum product which finally increases the gypsum strength.

10. Abstract
Patients with little pain sensation at gingival in terms of percussion need x-ray test before and after the treatment. It is important to evaluate the specification of the pathologic condition that happened at tooth/jaw inspection. The study was taken from tooth 3.6 a woman of 19 years old. The periapical technique is used to perform radiographic imaging. There are circular small radiolucent at mesial root, and 3 cm in diameter radio-opaque mass that includes mesial root. After 6 months of radiographic treatment, it was shown that the size of radio-opaque mass had relatively the same size. In conclusion, the patients should be treated in order to release pain.

11. Stomatitis aphthousa is a common disease in oral cavity
Deficiency of certain vitamins such as Vitamin B, folic acid, and Fe.
Traumatic factors causing among others by tooth brush, bite, orthodontic appliances
Hormonal disturbances
Immunological system
Stress

12. Stress may trigger Stomatitis aphthousa.
The decrease of the volume of saliva
The dry mouth
Unsensitive tongue
Irritation
lesion

13. Tobacco is one factor that may cause oral cancer.
Irritates the mouth because of its heat and substance.
contains of 4000 toxic agents
Influences oral flora environment

14. Plaque control is an important part of maintenance phases.
Stomatitis aphthousa is a common disease in oral cavity
Dental implants are one way to replace lost teeth that are increasingly popular at this time