Warm up (p. 11): complete Interpreting Formulas w/s Date Session # Activity Page # 9/12-13 5 Separating Mixtures Mini Lab 10 Separating Matter Notes interpreting Formulas warm up 11 Homework: Study for test: 9/18 A Day, 9/19 B Day Review sessions: Thursday 9/14 am & pm

Warm Up Interpreting Formulas Substance Element or Compound # atoms of each element Al2O3 Compound Al=2, O=3 Na2SO4 CaSO4 Fe C2H6 N2 O3

8.P.1 Understand the properties of matter and changes that occur when matter interacts in an open and closed container. 8.P.1.1 Classify matter as elements, compounds, or mixtures based on how the atoms are packed together in arrangements.

Students will: Identify physical processes and properties involved in separating mixtures, plan separation procedures for several mixtures, test those procedures and assess their success.

p 11 Mixtures Are made of components that are physically combined, e.g. ink, fizzy drinks, crude oil, air The components of a mixture can be separated by several methods or techniques Each separation technique makes use of differences in the physical properties of the components

Separating Mixtures video https://www.youtube.com/watch?v=jWdu_RV y5_A

Separating Mixtures What processes are used? Compounds Elements Homogeneous (solutions) Heterogeneous Evaporation LG Distillation – uses the different boiling points of components to separate a solution (evaporation followed by condensation) Sifting Filtering Separate using chemical reactions components are chemically combined Cannot be broken down into simpler substances.

Separating Mixtures Mini Lab Process used (sifting, filtering, magnetism, distillation) Physical property exploited (boiling point, magnetism, size, solubility) Aluminum (Al), Iron Filings (Fe) Use magnetism  Fe sticks to magnet, Al does not Magnetism is the physical property used Rocks, sand groups brainstormed and completed this process Salt, sand Add H2O to the mixture  Salt dissolves, sand doesn’t [physical property = solubility] Pour mixture through filter  sand remains, salt and water go through. [physical property used = size] Boil/Evaporate salt water  water evaporates, salt remains [physical property used = boiling point] Salt, sand, iron filings