1 / 17

Dodgers win again

Dodgers win again. Cubs choke Nice pick Alex. Heterogeneous Mixture. Mixtures do not always contains the same proportions of the substance that make them up. A mixture in which different materials can be distinguished easily is called a heterogeneous mixture. Example:.

elga
Download Presentation

Dodgers win again

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. Dodgers win again Cubs choke Nice pick Alex

  2. Heterogeneous Mixture Mixtures do not always contains the same proportions of the substance that make them up. A mixture in which different materials can be distinguished easily is called a heterogeneous mixture.

  3. Example: • Example – Granite rock, concrete, and dry soup. Also, you could pick off the pizza toppings that you don’t like.

  4. More Examples: • The clothes you wear, such as your jeans, shirts, or any material that contains 2 or more fibers. • Example: Cotton and Polyester. • Some heterogeneous mixtures we can see, but some we don’t see.

  5. Example • Example: cheese – It is made of milk, proteins, butterfat, colorings and food additives.

  6. Homogenous • A homogeneous mixture contains two or more gases, liquids, or solid substances blended evenly throughout.

  7. Examples • Examples: • Soda • Vinegar

  8. Extra • Another name for a homogenous mixture is a solution. • A solution is a homogenous mixture of particles so small that they cannot be seen with a microscope and will never settle to bottom of their container.

  9. Colloids • A colloid is a type of mixture that never settles. Its particles are larger then those in a solution buy not heavy enough to settle. • In Greek, the word colloid means “glue”. *A colloid is a homogenous mixture* (write that in your notes)

  10. Examples of Colloids • Milk – water, fats, and proteins • The first colloids studied were in a gelatin. • Paints are colloids, • Fog and smoke – thick gases mixed with different particles that don’t settle.

  11. Detecting Colloids • One way to distinguish a colloid from a solution is by its appearance. • Fog appears white because its particles are large enough to scatter light.

  12. The light test • You can tell for certain if a liquid is a colloid by passing a beam of light through it. • A light beam is invisible as it passes through a solution, but can be seen readily as it passes through a colloid.

  13. Passing a beam of light through a substantance. (colloid)

  14. The scattering • The scattering of light is called the Tyndall Effect.

  15. Tyndall Effect

  16. Suspensions • Some mixtures are neither solutions nor colloids. A suspension, which is a heterogeneous mixture contains a liquid in which the particles never settle to the bottom.

  17. Example • Pond water • River Deltas

More Related