Physical and Chemical Properties and States of Matter

1. Warm-Up 11/3/16: SWBAT explain the difference between physical and chemical properties. • Think of all of the properties that we have talked about this year, make a list.

7. Is it a chemical or physical change? Is it reversible? Yes No Physical Change Chemical Change

12. Make a Venn Diagram Physical Properties Chemical Properties

14. Warm-up 11/22/16 SWBAT describe the three states of matter. • What are the three states of matter? These are also known as phases. Do you know the six phase changes? • Hint: one is freezing, another is evaporation. • Draw the three phases as best you can, then draw and arrow to show the direction of the phase change and label it.

15. Quiz Decide whether each change is physical or chemical. • Phase Change • Boiling Point • Capacity to corrode • Combustibility • Freezing Point • Density • Electrical Conductivity • Viscosity • Melting Point • Capacity to Oxidize • Solubility

16. Quiz Answers

22. Practice • Do you need to put energy in? or will you get energy out? • S->g • S->l • G->s • G->l • L->s • L->g

26. Cool-down • Describe how motion of particles is related to the state of matter. • Make up your own example of each of the phase changes. • How will you study these three states of matter and phase changes for the test? • Videos: • Sublimation and deposition • https://www.youtube.com/watch?v=Ft2KgtlP8Lk • Triple Point of Cyclohexane • https://www.youtube.com/watch?v=XEbMHmDhq2I • Supercritical Fluids • https://www.youtube.com/watch?v=yBRdBrnIlTQ

27. 1st period took ELA pre-test 11/23Warm Up 11/23/16 2nd & 3rd period onlyWarm Up 11/28/16 1stperiod only SWBAT identify standard units. • Which units (feet, pounds, inches) do we use to measure stuff, imperial or standard? • The units that the rest of the world uses have a name, The International System of Units. Or “SI units” for short, often called the metric system. • Take 3 minutes to list all of the units that you know of and then we will categorize them as SI units or non-SI units. • Today we will be taking notes on a short lecture on standard units(SI units). Have your notes paper ready.

28. Warm-Up 11/28 2nd and 3rd period only SWBAT use dimensional analysis to solve conversion problems. • How many milligrams are there in a gram? • How many meters are there in a centimeter? • How many kilograms are there in a gram? • How many decigrams are there in a gram? • What are the six phase changes we have covered? • What is the difference between physical and chemical properties?

29. Quiz time • List three physical properties and three chemical properties. • Draw the phase change diagram. Include as much detail as possible.

30. The International System of Units • SI Units • a system of units based on the meter, kilogram, second, ampere, kelvin, candela, and mole, together with a set of prefixes (kilo, centi, mili) to indicate multiplication or division by a power of ten.

32. This is the “metric system” 

35. Let’s put this to use! • What is the speed of light? • Can you fathom what this means? • What units would make this number more meaningful? • How can you convert to those units?

36. Practice with Dimensional Analysis In labs, we will use graduated cylinders and beakers to measure volume, they are labeled with milliliters. Let’s practice some useful conversions. • How many liters in a milliliter? • How many milliliters in a liter? • How many milliliters in 10L? • How many mL in 11.7L? • How many L in 7,892mL? • How many mL in .62L?

37. Homework • Unit Conversions Worksheet – 6 problems, due Wednesday.

38. 1 lb of feathers 1 lb of rock WARM-UP: 11/30/16: SWBAT calculate density.Which do you think would have the greater volume and mass?Why?

39. DENSITY Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the amount of matter within a certain volume.

42. Proof that water and ice have different densities

43. To find the density 1- Find the mass of the object 2- Find the volume of the object 3- Divide Density = Mass Volume

44. Units for density g/cm3 or g/ml Formula: M = mass V= volume D = density M = D x V V = M / D D = M / V

45. Warm-Up 12/1/16 SWBAT calculate the density of various objects in the lab. 1. If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density. To find density: • Find the mass of the object • Find the volume of the object • Divide : Density = Mass - Volume

46. To find density: • Find the mass of the object • Find the volume of the object • Divide : Density = Mass - Volume Ex. If the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density. Set up your density problems like this: Given: Mass = 35 grams Unknown: Density (g/ cm3) Volume = 7 cm3 Formula: D = M / V Solution: D = 35g/7 cm3 D = 5 g/cm3

47. Density Lab Find the density of each object in the bag, then predict whether each object would sink or float in each of the following liquids.

48. Warm-Up 12/2/16 SWBAT name the parts of a lab report and use data from the density lab to write a “results section” of a lab report. Use this website to find the parts of a lab report: https://owl.english.purdue.edu/owl/resource/670/03/ Write only the results section of the lab report for the density lab.

49. The “Results” Section • Restate hypothesis • Most important goes first • Use charts, graphs, or tables to make data very easy to read • Equations used • Sample calculations • You should always have multiple trials in case or error

50. Warm-Up 12/5/16 SWBAT complete problems using dimensional analysis. • How many milliliters in 25.7 liters? • How many milliliters in 12.7 kiloliters? • How many grams in 15 decigrams? • How many decigrams in 2 kilograms? • How many centimeters in 5.78meters? • How many centimeters in 12.223 decameters? • How would you find your own density? My gradebook closes this Friday, the 9thfor late work.