Stone

**1. Write your ideas about the following questions: ** Stones are hard materials that you can find in the nature, and is commonly used to make buildings.
 * **What are stones? **

Vocanic stones, marble, sedimentary stones. Stones are usually hard, the cant be burnt, and are not flexible at all, stones have diferent color and property.
 * **How many kinds of stone do you know? **
 * **What characteristics do stones have? **

Beacuse they are strong, they are durable and can be found in the nature, so they are cheaper than other materials.
 * **Why are stones used in construction? **

**2. **<span style="background-color: transparent; color: #000000; font-family: serif; font-size: 18px; text-align: justify; text-decoration: none; vertical-align: baseline;">**Write a paragraph using the information given**


 * <span style="background-color: #ffffff; color: #800000; font-family: serif; font-size: 16px; text-decoration: none; vertical-align: baseline;">Stones have many advantages as a constructing material, such as: their durability, their adaptability to sculptural treatment **(that allows them to have practical and expressive qualities)** and the fact that they can be used naturally. However not all rocks are the same; they have different properties, and because of that they are used for different types of stonework respectively. Examples of those are "Rubble" (roughly broken stones bounded in a mortar), and "Ashlars’-Masonry" (regularly cut blocks that can be used for various porpoises, such as making entablatures). **Both of them are important for construction, and especially for the monumental ones, built essentially in ashlars’ masonry, after all, rocks can stand the deformation better than any other bonding could.** Rocks are very advantageous materials, nevertheless they tend to be expensive; difficult to quarry, transport and cut; and have unfavorable traits like being unstable with load pushing at angles and being weak in tension. Those disadvantages have made the man seek for wood, metals, and various artificially created materials, to develop the construction of various objects and buildings but regardless of that they are still an important construction material **that has being around since the stone age,** and they will keep being so in the years to come.

8.[|Stone]

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