04th+Quarter+2014

[] [|Chemicool] The [|Golden Book of Chemistry] [|Why is glass transparent]? [|Make Hot Ice] [|Reaching Orbit] [|SpaceX and Elon Musk] Real Future of Space Exploration [|Saturn may have a new moon.] [|Headline Science Discoveries] 03rd Quarter 2014

6/5 & 6/6 Take the final (10% of your grade)

6/2 & 3 & 4 Extra credit: Do questions at the end of the sections for chapters 14 & 15 in the textbook.

Study for the final. There are 50 questions but only 32 will count towards your grade. Research the questions below using your textbook. Researching each questions should help you with two questions on the final.

Benchmark/Final Review 1. How is average speed calculated? (Speed limit signs give you a hint.) 2. Grandma drove 100 miles with an average speed of 20mph; how long did her trip take? 3. A cyclist rode 48 kilometers in three hours. Calculate the speed. 4. What is the speed of a car that travels 100 miles in five hours? 5. A car backed into a lake and is stuck with a force of 150 N. How much force and in what direction will free the car. 6. What is friction? 7.What are the charges on the particles that make up the atom? 8. What happens to bonds in a chemical reaction? 9.Which state of matter has the greatest amount of molecular motion? 10. What makes planets appear to give off light? 11. What is the difference between reactants and products? 12. What is the difference between chemical and physical changes? 13.What is the pH of an acid? What is the pH of a base? 14. What does the atomic number of an element tell you about its particles? 15. What is an isotope? 16. What is the density of a square block with a side of 2cm and a mass of 32grams.

5/27 & 5/28 Finish your "Specialist" research. (20 minutes) Regroup back to your original group and follow the instructions at this link.

5/22 & 5/23 Use the questions provided on the specialist page to guide your research. (100 minutes of class time) You will have one class period plus 20 minutes do this research and summarize your findings. (You must have your own copy of these findings to bring back to your group.) 200 words and sources are required to earn full credit. Assign roles to the members of your team. Astronomer (Go to the first row and form a specialist team.) Meteorologist (Go to the second row and form a specialist team.) Geologist (Go to the third row and form a specialist team.) Biologist (Go to the fourth row and form a specialist team.)

5/8 to 5/17 (280 minutes of class time) Solar System Colonization Project Start at the link above and read to the project page and then research the questions provided. Follow the instructions on the "background" page. Pay attention to the grading details. (You must have your own copy of these findings in your notebook to bring to your specialist group.) Part 1: Research how to survive in space and summarize your findings. You may use the questions provided to guide your research. 200 words and sources are required. If needed use this resource page. Part 2: Research facts the main bodies and objects in the solar system. You may use the questions provided to guide your research. 320 Words required. If needed use this resource page. Part 3: Research four of your own questions and Google the answers. 80 Words and source are required. If needed use this resource page.

5/1 CST Review 1

__ Gravity __

http://studyjams.scholastic.com/studyjams/jams/science/solar-system/sgravity-and-inertia.htm

__Star Life Cycle__

Burning a candle from both ends. Would it be brighter? Would it burn as long? The flame that burns twice as bright, burns half as long.

Big stars consume their hydrogen faster, so they burn for a shorter time. Small stars consume their hydrogen slower, so they burn for a longer time.







4/14 & 15 & 16 Work on these questions for a test on Thursday and Friday

Chemical Reactions and pH Study Guide 1a. What happens to the atoms in a chemical reaction? 1b. What happens to the reactants in a chemical reaction? 2. Where are the reactants and products found in a chemical equation? 3a. Formation of a new substance, gas production, a color change, and/or a solid forming are evidence of… 3b. The best evidence for a chemical reaction is… 4a. What kind of change is indicated by a precipitate? 4b. What kind of change are boiling, dissolving and crushing? 5a. How will the mass of the reactants and products compare in every chemical reaction? 5b. What is the law of conservation of mass? 6a. Balance: C2H4 + O2 à CO2 + H2O 6b. Balance: C4H8 + O2 à CO2 + H2O 7. 2K + H2O à KOH + H2 8. A crazy reacted 9g of sodium with 3g of chlorine. What will the mass of the products equal? 9a. Why do reactions need activation energy? 9b. What does activation energy do to reactants? 10a. How can the energy needed to start a reaction be reduced? 10b. How can the speed of a reaction be changed? 11a. What evidence of a chemical reaction should occur if wood is burned? 11b. Why is the burning of wood an exothermic reaction? 12a. In a reaction graph p. 236, what does the peak in the curve in each graph represent? 12b. What is required to start every chemical reaction, both exothermic and endothermic? 13a. In reaction graphs, how do you tell if the reaction is exothermic or endothermic? 13b. In the reaction graphs, what does the second arrow show for each graph? 14a. Is melting a physical or chemical change? 14b. What happens during melting? 15a. Is boiling a physical or chemical change? 15b. What happens to the energy of a substance to make it boil? 16a. What is the difference between a physical and chemical change? 16b. Is freezing a physical or chemical change. 17a. What is the pH of distilled water? 17b. What is the pH of a neural substance? 18a. Do acids or bases have more hydrogen ions? 18b. Do high or low pH numbers indicates a high number of hydrogen ions? 19a. Do bases have pH numbers greater or less than 7? 19b. How is a base different from an acid? 20a. What color will an acid turn litmus paper? (p. 277) 20b. What color will a base turn litmus paper? 20c. Make up something to remember 20a & 20b.

4/7 & 4/8 & 4/9 Questions P. 229 Questions P. 231 Questions P. 239 Figures Pp. 236 & 239

Chemical Reactions and pH Study Guide (Textbook pages 214 to 245) 1a. What happens to the atoms in a chemical reaction? 1b. What happens to the reactants in a chemical reaction? 2. Where are the reactants and products found in a chemical equation? 3a. Formation of a new substance, gas production, a color change, and a solid forming are evidence of… 3b. The best evidence for a chemical reaction is… 4a. What kind of change is indicated by a precipitate? 4b. What kind of change are boiling, dissolving and crushing? 5a. How will the mass of the reactants and products compare in every chemical reaction? 5b. What is the law of conservation of mass? 6a. Balance: C2H4 + O2 à CO2 + H2O 6b. Balance: C4H8 + O2 à CO2 + H2O 7. 2K + H2O à KOH + H2 8. A crazy reacted 9g of sodium with 3g of chlorine. What will the mass of the products equal? 9a. Why do reactions need activation energy? 9b. What does activation energy do to reactants? 10a. How can the energy needed to start a reaction be reduced? 10b. How can the speed of a reaction be changed?



__ 4/3 & 4/4 __

Part 1 Finish Analysis of __ Chem Change Activity __

P. 221 Questions Due

Part 2 __ Energy in Chemical Changes __ (Textbook page 220. Do 1 to 5)

Part 3 __ Melting & Boiling __ (Copy and know a to f below.)

a) In melting and boiling, The substance’s identity is not changed.

b) Melting and Boiling Are only physical changes.

c) In melting and boiling, Only the state changes.

d) The energy in a substance increases to produce melting and boiling.

e) If melting and boiling are only physical changes, Freezing is also a physical change.

f) What is the difference between molecular and ionic compounds?

g) Textbook page 195. Do questions 1 to 5.

4/2 Analysis of Chem Change Activity

3/31 & 4/1 Periodic Video Clip - (Group 18, plus mixing Group 1 with Group 17 / Mendelev to Making NaCl) Chem Change Activity