1 / 11

Products from Raw Materials

Products from Raw Materials. Suspension. A mixture in which particles of a material are dispersed through- out a liquid or gas but are large enough that they settle out. Particles are insoluble, so they DO NOT dissolve in the liquid or gas. Particles can be separated using a filter.

wynter-sears
Télécharger la présentation

Products from Raw Materials

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Products from Raw Materials

  2. Suspension A mixture in which particles of a material are dispersed through- out a liquid or gas but are large enough that they settle out. Particles are insoluble, so they DO NOT dissolve in the liquid or gas. Particles can be separated using a filter. Examples: Salad dressing Medicines that say “shake well before use”

  3. Colloids A mixture in which the particles are dispersed throughout but are not heavy enough to settle out. Made up of solids, liquids and gases. Examples : Mayonnaise Stick deodorant milk

  4. Mixing Pure Substances • Pure substances can be mixed together to form solutions that are liquid, gas or solid. • Most metals we use are combinations of two or more metals mixed together.

  5. Alloys • An alloy is a homogeneous mixture of metal with other substances. • Alloys allow scientists to design metals that have specific properties depending on what they are used for.

  6. Metals • http://www.brainpop.com/science/matterandchemistry/metals/preview.weml

  7. How an Alloy is Made • Steel is formed in a process that takes iron from iron ore and carbon from coal. • Small amounts of other metals are mixed in to give the metal specific properties.

  8. Uses of Alloys • Thousands of years ago civilizations melted tin into copper to create a new substance called bronze. • Bronze was used to create jewellery, armour, tools and weapons.

  9. Modern Alloys • Metallurgists (people who study metals) have created many different alloys, each having its own specific properties. • Aluminum is lightweight and used in alloys to make engines, airplanes and bicycle frames.

  10. http://www.ndep.us/Making-Metal

  11. Text Book Questions • Page 43 • 1 • 2 a, b • 3 • 4

More Related