PPT-Mixtures & Solutions

Mr McMartin Beta Science Mixtures Mixture a combination of two or more substances that are not chemically combined Can only become a mixture if they do not react to form a compound There are no chemical changes that happen in a mixture. Yi Yang & Deva . Ramanan. University of California, Irvine. Goal. Articulated pose . estimation. ( ). recovers . the pose of an articulated object which consists of joints and rigid parts. Investigation 1. Let’s talk about our results. Which. mixtures were separated by the screen?. Gravel. Which mixtures were separated by the filter?. . Powder. How are the screen and filter similar?. Investigation 1. Separating Mixtures. Part 1 – Making & Separating Mixtures. Vocabulary. Mixture. – a substance containing two or more materials with different properties.. Property. – a characteristic of an object (something you can observe). Grade 7. Matter. is anything that has mass and takes up space. Mass is the amount of matter in an object. . A. Solid . is matter that has a definite shape and volume. A . liquid. is matter that does not have a definite shape, but has a definite volume. SEPARATING MIXTURES. Discuss with a partner how you would separate the following mixtures… . Salt . water . Muddy . water . Iron . filings and sand . Vegetable . oil and sand . Vegetable . oil and water . 10-8-14. . Sorting. Separating mixtures with your hands.. Ex: separating pop corn kernels, black beans, & rice. 2. . . Using a Magnet. Using the magnetic property of a substance to separate a mixture. Mixtures may be separated by many different techniques based on differing physical and/or chemical properties. Sorting. Simply picking apart the different components. This can be easy and obvious…. Grade 9 Science. Mixtures can be separated by physical means…. Filtration can be used to separate an insoluble substance from a soluble substance. Evaporation can be used to separate a solute from the solvent in a solution. of . Pharmaceutical Mixtures:. -. empirical . knowledge, gaps and regulatory options. Thomas Backhaus . University of Gothenburg . thomas.backhaus@gu.se. [T]here are . known . knowns. ; there are things we know that we know. Mixtures. Solutions are a type of mixture, so to understand solutions, first we have to know what a mixture is…. A . mixture. is a combination of two or more substances. Each substance keeps it’s own properties, even though it is mixed with another substance. They . Classifying Matter by Composition. Homogeneous. – . matter with a uniform composition. Heterogeneous. - . matter without a uniform composition. Substance. - A pure type of matter that does not vary from sample to sample. Includes . Solutions and Other Mixtures. Objectives. Distinguish between heterogeneous mixtures and homogeneous mixtures.. Compare the properties of suspensions, colloids, and solutions.. Give examples of solutions that contain solids or gases.. What formulators need to know. Purpose of this presentation. This presentation, with notes, was prepared by ECHA, the European Chemicals Agency, to assist you in preparing a presentation about REACH and CLP relating to downstream users. The intention is that you can select relevant slides and modify them as necessary to suit your audience, whether it is management, workers, environmental health and safety professionals, authorities etc. You may use it without additional permission.. . Sorting. Separating mixtures with your hands.. Ex: separating pop corn kernels, black beans, & rice. 2. . . Chromatography. Separating colored mixtures.. Ex: Black marker. 3. . . Using a Magnet.