Published on

This is a powerpoint presentation about materials. Hope that you learn more about materials from this presentation.

  • Be the first to comment

  • Be the first to like this

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide


  1. 2. <ul><li>Clay </li></ul><ul><li>It is made from water, mud and rocks over the years. Also mixed with chemicals. </li></ul><ul><li>It can also be made from mud and water from the bottom of a stream. </li></ul><ul><li>It needs heat energy to be made solid. </li></ul><ul><li>Wood </li></ul><ul><li>It is the main substance in trees </li></ul><ul><li>It is simple to cut </li></ul><ul><li>It is strong </li></ul><ul><li>It is from trees </li></ul><ul><li>Glass </li></ul><ul><li>It is composed mainly of sand (silicates, SiO2) and an alkali. </li></ul><ul><li>These are the main characteristics of glass: </li></ul><ul><li>- It is a Solid and hard material </li></ul><ul><li>- It is fragile and easy to break into sharp pieces </li></ul>
  2. 3. <ul><li>Clay </li></ul><ul><li>Break it down- Properties of Water </li></ul><ul><li>Water is made out of natural resources from earth, and it's also made out of atoms. </li></ul><ul><li>Properties of mud </li></ul><ul><li>  Made out of soil, silt and clay. Brown, Liquidishy. </li></ul><ul><li>Properties of Rocks </li></ul><ul><li>  Hard, Dried magma </li></ul><ul><li>Wood </li></ul><ul><li>Break it down- Properties of trees </li></ul><ul><li>Woody </li></ul><ul><li>Rough (some are soft) </li></ul><ul><li>Brown bark </li></ul><ul><li>Properties of seeds </li></ul><ul><li>Hard </li></ul><ul><li>Take a long time to grow </li></ul><ul><li>Glass </li></ul><ul><li>Broken down: Properties of sand </li></ul><ul><li>Made up of other minerals or small rock fragments. Sand contains a large proportion of heavy minerals like rutile and zircon. </li></ul><ul><li>Broken down again: Properties of rocks </li></ul><ul><li>  Solid and not easy to break (unless it's soft and a bit smooth). Examples of rocks are Marble, Slate, Granite, Pumice, Chalk (kind of) and many more. </li></ul><ul><li>Rocks: Some kind of rocks are found from a volcano, like Pumice. Others may be found on beaches. </li></ul>
  3. 4. <ul><li>Clay </li></ul><ul><li>Clay is found deep in the ground </li></ul><ul><li>In rivers, streams </li></ul><ul><li>Wood </li></ul><ul><li>All over the world, from trees </li></ul><ul><li>Glass </li></ul><ul><li>In factories around the world. (It is made in factories) </li></ul><ul><li>The finished product is found on the side of houses (windows), in the kitchen (Glass cups, glasses we don’t wear) or on shelves(Ornaments, trophies, glasses that we wear in their cases). </li></ul>
  4. 5. <ul><li>Clay </li></ul><ul><li>People like Harrapans or Egyptians find a lot of clay. </li></ul><ul><li>Poorer countries use them for making mud bricks/ have clay in them. </li></ul><ul><li>Wood </li></ul><ul><li>Wood was the earliest fuel used  </li></ul><ul><li>Glass </li></ul><ul><li>  Before people learned to make glass, they had found two forms of natural glass. </li></ul>
  5. 6. <ul><li>Clay </li></ul><ul><li>The material has changed from a big lump of nothing into a clay item such as a vase, bowl or it might just get packed into a bag to be wet clay. </li></ul><ul><li>Wood </li></ul><ul><li>The color of the wood can be changed </li></ul><ul><li>Glass </li></ul><ul><li>The shape changes and the structure changes during the process of making glass </li></ul>
  6. 7. <ul><li>Clay </li></ul><ul><li>Clay is renowned to have many uses in promoting health in plants, animals and humans. </li></ul><ul><li>Bentonite clay can treat various skin </li></ul><ul><li>It can eliminate food allergies, food poisoning, mucus colitis, spastic colitis, viral infections, stomach flu, and parasites (parasites are unable to reproduce in the presence of clay). </li></ul><ul><li>There is no digestive disease that clay will not treat. It enriches and balances blood. It adsorbs radiation (e.g. cell phones, microwaves, x-rays, TVs and irradiated food). </li></ul><ul><li>It has been used for alcoholism, arthritis, cataracts, diabetic neuropathy, pain treatment, open wounds, diarrhea, hemorrhoids, stomach ulcers, animal and poisonous insect bites, acne, anemia, etc. </li></ul><ul><li>It is also used for pottery and for molding things. </li></ul><ul><li>Wood </li></ul><ul><li>Many architecture </li></ul><ul><li>Sculptures </li></ul><ul><li>Stationary </li></ul><ul><li>Paper </li></ul><ul><li>Furniture </li></ul><ul><li>Glass </li></ul><ul><li>Windows </li></ul><ul><li>Ornaments </li></ul><ul><li>Trophies </li></ul><ul><li>Glasses </li></ul><ul><li>Structures </li></ul>
  7. 8. <ul><li>Clay </li></ul><ul><li>Clay is measured in weight, density, lumps, temperature and other ways. </li></ul><ul><li>Wood </li></ul><ul><li>Cords </li></ul><ul><li>Weight </li></ul><ul><li>Centimeters </li></ul><ul><li>Time </li></ul><ul><li>Meters  </li></ul><ul><li>Glass </li></ul><ul><li>Micro-Raman spectroscopy- used to measure stress distributions in 1.5 µm thick polycrystalline silicon thin film solar cells on glass. </li></ul>
  8. 9. <ul><li>Clay </li></ul><ul><li>If we keep getting more clay from local areas, more people can get jobs and it will help their families make money </li></ul><ul><li>We will have more clay to use and nice pottery to display in our houses </li></ul><ul><li>More countries will demand more clay and make that country popular </li></ul><ul><li>There might be large areas of flora and fauna that are getting killed to make space for clay mines </li></ul><ul><li>Wood </li></ul><ul><li>We will cut down all the trees and we will have no more oxygen to breathe in </li></ul><ul><li>All living creatures will die </li></ul><ul><li>Glass </li></ul><ul><li>The chemicals which make glass may differ so that we can use different types of chemicals and not use the regular chemicals that make glass. </li></ul><ul><li>The materials which make glass may be more environmentally friendly, so that saves the environment. </li></ul><ul><li>People might be able to make different things with glass (rather than the things mentioned) </li></ul><ul><li> </li></ul>
  9. 10. <ul><li>Irreversible changes are changes which cannot be reversed, for example, if you cook an egg, you can’t change the egg back into a raw egg. Reversible changes are changes which can be reversed, for example, if you turn water into ice by cooling it, you can turn ice back into water by heating it. </li></ul>Raw egg-heating and cooling (Irreversible) Sand (Reversible change
  10. 11. <ul><li>   </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li>  </li></ul><ul><li>   </li></ul>