*LAST SCIENCE CLASS OF THE 1st QUARTER!* Thursday, October 25, 2012 Friday, October 26, 2012 Thursday, October 25, 2012 Friday, October 26, 2012 Water Quality Indicators/Treatment Quick Check Water Droplet Obituary Create your “Water Droplet Obituary” Warm Up: Take out the EOG Prep Book, place it between you and your should buddy and turn to page 157. Read Chapter 21 silently. Answer “Lesson Review” Questions 1-3 Also, answer the “Discussion Question” on page 160. *LAST SCIENCE CLASS OF THE 1st QUARTER!* Water Droplet Obituary – Describes the series of locations, events and experiences that droplet had in its “lifetime”. Possible Starting Points: Headwaters of Catawba River Basin Precipitation from a rain cloud into a forest Puddle near a factory Hydroelectric Power Plant at Lake Norman Carowinds Water Park Possible Ending Points: Pfiesteria infested swamp Hog waste lagoon In a bottle from a drinking water treatment facility Waste water treatment center Puddle in front of JMR Homework: Create your Water Droplet Obituary Be sure to include A specific start point Your path through the water cycle A specific end point Page 41 Page 42

Wait for video questions Tuesday, October 30, 2012 Wednesday, October 31, 2012 Tuesday, October 30, 2012 Wednesday, October 31, 2012 Intro to Chemistry and Atoms Read Section 1.1 of Unit D in Text Answer Q 1-3 Warm Up: Wait for video questions Chemistry – The study of matter and atoms and the changes they can undergo Atoms – The building block and basic unit of all matter - Consist of a small charged particles Subatomic Particles – Atoms contain charged particles Nucleus Electron Cloud (rings) Positive – Protons Negative – Electrons Neutral – Neutrons Parts of an Atom : Nucleus Electron Cloud Homework: 1. Read Section 1.1 of Unit D in Text Answer Q 1-3 Page 43 Page 44

Connection to the Periodic Table of Elements (p. 20 D) Atomic Number – Number of Protons - This is how elements are arranged on the periodic table Neutral Atom –Protons = the number of Electrons Atomic Mass Number – Number of Protons + Neutrons - The total mass of the nucleus 6 C Carbon 12.001 Atomic Number = # of Protons / Electrons Symbol = 1st letter always capital Atomic Mass = Protons + Neutrons

Reading Atoms on the Periodic Table 16 S Sulfur 32.066 13 Al Aluminum 26.982 11 Na Sodium 22.990 Protons: Neutrons: Electrons: Protons: Neutrons: Electrons: Protons: Neutrons: Electrons: Page 46

Atomic Structure Notes Continued Bohr Model - model that shows where particles are located in atoms. Valence electrons – outermost energy level Carbon: 6 Protons How many valence electrons? 6 Neutrons 6 Electrons Page 46

Bohr Model Practice: Use the information to make a Bohr model Carbon: 6 Protons 6 Neutrons 6 Electrons Nitrogen: 7 Protons 7 Neutrons 7 Electrons Oxygen: 8 Protons 8 Neutrons 8 Electrons Page 46

Determine Protons, Neutrons and Electrons, Draw a Bohr Diagram Practice: Determine Protons, Neutrons and Electrons, Draw a Bohr Diagram 5 B Boron 10.811 10 Ne Neon 20.180 12 Mg Magnesium 24.305 Page 46

Atoms of the same element are alike / different. Thursday, November 1, 2012 Friday, November 2, 2012 Thursday, November 1, 2012 Friday, November 2, 2012 Practice Bohr Models Finish Pure Substances vs. Mixtures Graphic Organizer Bohr Models Pure Substances vs. Mixtures Warm up: Atoms of the same element are alike / different. Protons are positive / neutral / negative. Protons are inside / outside the nucleus. Neutrons are positive / neutral / negative. Neutrons are inside / outside the nucleus. Electrons are inside / outside the nucleus. The overall charge of the nucleus is positive / neutral / negative. Pure Substances – same composition throughout (atoms, elements, compounds) Mixtures – physical combinations Homework: Practice Bohr Models Finish Pure Substances vs. Mixtures Graphic Organizer Page 45 Page 46

Determine what element this Bohr model is representing. Monday, November 5, 2012 Tuesday, November 6 2012 Monday, November 5, 2012 Tuesday, November 6, 2012 Finish Periodic Table worksheet Introduction, Organization and History of the Periodic Table Warm up: Determine what element this Bohr model is representing. How did you come to this conclusion? Draw a Bohr model for Helium and Neon – can you make any observations that make these two alike in any way? Make a t-chart and compare and contrast mixtures and pure substances. Homework: Finish Periodic Table Worksheet - Parts 1 and 2 ONLY Page 47 Page 48

Matter Pure Substances Mixtures Element Compound Homogeneous Has mass or weight Takes up space (volume) Cannot occupy the same space as other matter at the same time Pure Substances Has the same composition throughout Can Occur Naturally Mixtures Formed when two or more substances are physically combined Parts can be physically separated Substances in a mixture retain their original properties Element Cannot be broken down into simper substances Compound Chemical combination of two or more different elements Cannot be physically separated Properties are entirely different properties of each element alone Homogeneous Parts of the mixture are evenly distributed Heterogeneous Parts of the mixture are not evenly distributed

Group or Family (All have same number of valence electrons) Non-Metals Nobel Gasses Period or Row (One proton is added from left to right) Metaloids Metals

Chinese Periodic Table

English Periodic Table

Chemistry Careers Make up Pharmacist Gatorade Cologne/Perfume Food Chemistry Make up Gatorade Fireworks Forensic Detectives Pharmacist Cologne/Perfume Toothpaste/mouthwash/hand lotion, etc

Families of Elements on the Periodic Table