1. Tuesday 10/13 Copy the following scenarios on your DO NOW handout. Next to each scenario, write a “P” if it is a physical change or a “C” if it is a chemical change. EXPLAIN YOUR ANSWER. 1.Biting into an apple - 2.A half eaten apple turns brown - DO NOW VL: 0

2. ESSENTIAL QUESTIONS: What are the signs of a chemical reaction? OBJECTIVES: Students will investigate how evidence of chemical reactions indicate that new substances with different properties are formed. Students will identify the number of elements of atoms in a chemical formula. EQs & Objectives

3. Physical Change Chemical Change -Precipitate -Odor -Gas formation -Color change VOCABULARY Chemical Formula Subscript Coefficient Reactant Product Yield Balanced

4. AGENDA Pre-AP & Grade Level -1 st 6 wk Reflection Discussion -Physical Properties Quiz -Luminol Reaction Video -Chemical Formulas Practice HomeworkPhysical vs Chemical Changes HW

5. Ideas for Improving Science Class More labs Play music Less cornell notes Move around room more Choose seating arrangement More videos More games (jeopardy, kahoot) More projects More group work Less worksheets Extra credit opportunities More examples and visuals More/longer brain breaks More stickers/treats Mrs. G should slow down when taking notes Easier HW More dry erase board practice

6. Physical Properties Quiz On the back of your quiz, answer the following question in complete sentences: 11. In the Marshmallow Lab, you dropped a marshmallow in boiling water. Was this a physical or chemical change? Explain your answer.

7. Glow in the Dark Reaction Luminol Reaction Chemical Reaction between: Luminol – C 8 H 7 N 3 O 2 Potassium Ferricyanide - K 3 Fe(CN) 6 **Chemiluminescence is the release of energy in the form of light from a chemical reaction. Luminol is the organic compound responsible for the blue light produced.

8. IMPORTANCE OF LUMINOL Luminol is used at crime scene investigations to locate traces of blood. Investigators prepare a solution of luminol and spray it throughout the crime scene. The iron (Fe) present in blood speeds up the chemical reaction that leads to the luminescence of luminol, revealing the presence of the blood. The process of chemiluminiescence is also used in glowsticks and emergency lighting. *What do you think bioluminescence is? *Can you think of any animals who have this?

9. Chemical Formulas Task: On your dry erase board, count the number of atoms for each element. Calculate the total numbers of atoms in the chemical formula. 1.Carbon Dioxide – CO 2 C – 1 O – 2 Total atoms = 3 2.Baking Soda – NaHCO 3 3.Aspirin - C 9 H 8 O 4 4.Methane Gas – CH 4 5.Ammonia – 6NH 3 6.Chalk – CaCO 3 7.Citric Acid - C 6 H 8 O 7 8.Sulfuric Acid – H 2 SO 4 9.Copper Sulfate 3CuSO 4 10.Caffeine - C 8 H 10 N 4 O 2

10. Wed/Thur 10/14-10/15 Copy the following formula on your DO NOW handout and answer the question. Ammonia – 4NH 3 How many total atoms are found in 4 molecules of ammonia? (Show your work!) DO NOW VL: 0

11. ESSENTIAL QUESTIONS: What are the signs that a chemical change has occurred? OBJECTIVES: Investigate how evidence of chemical reactions indicate that new substances with different properties are formed. Identify the formation of a new substance by using the evidence of a chemical change such as production of a gas, change in temperature, production of a precipitate, or color change EQs & Objectives

12. Physical Change Chemical Change/Reaction -Precipitate -Odor -Gas formation -Color change VOCABULARY

13. AGENDA Agenda1.Chemical Changes Stations 2.Chemical vs Physical Changes reading and Cornell notes 3.Top 10 Most Amazing Chem Rxns Video 4.Exit Ticket HomeworkPhysical vs Chemical Changes

14. Think, Pair, Share What are the signs of a chemical reaction?

15. Chemical Change Stations VL: 0 Copy the following table onto page__ of your INB. Chemical Change Stations Station 1: Grape Juice and Ammonia Observations: 1. 2. Summary statement: This is a chemical change because…. Station 2: Citric Acid and Baking Soda Observations: 1. 2. Summary statement: Station 3: Calcium Chloride and Water Observations: 1. 2. Summary statement: Station 4: Hydrogen peroxide, copper sulfate, ammonia Observations: 1. 2. Summary statement:

16. Chemical Reaction Stations VL: 2 Lab director for each station: Station 1: Station 2: Station 3: Station 4: (Red dot must wear gloves and is the only one to handle the chemicals at Station 4.) SAFETY: You must wear your goggles at all stations.

17. Chemical Changes in Compounds Use the reading on chemical changes to complete the Cornell notes. 1.Fill in the blanks on the right side. 2.Create questions on the left side. 3.Write a short summary at the bottom.

18. Amazing Chemical Reactions Chem Reaction Video Video Discussion: 1.Which chemical reaction did you like the most? 2.What were the signs that a chemical reaction occurred?

19. EXIT TICKET

20. Friday 10/16 Answer the following on your DO NOW handout. Use your Chemical Changes lab from yesterday to list 4 signs of a chemical change: SIGNS OF A CHEMICAL CHANGE 1. 2. 3. 4. DO NOW VL: 0

21. ESSENTIAL QUESTIONS: How do we determine if a chemical equation is balanced or not? OBJECTIVES: 8.5 (F) recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the Law of Conservation of Mass. Students will investigate how evidence of chemical reactions indicate that new substances with different properties are formed. Students will identify the number of elements of atoms in a chemical formula. Students will be able to determine if a chemical equation is balanced or not. EQs & Objectives

22. Physical Change Chemical Change -Precipitate -Odor -Gas formation -Color change VOCABULARY Chemical Formula Subscript Coefficient Reactant Product Yield Balanced

23. AGENDA Pre-AP & Grade Level -Alka-Seltzer Lab -Conservation of Mass video -Define: Conservation of Mass -“Law of Conservation of Mass” practice HomeworkPhysical vs Chemical Changes HW

24. Alka-Seltzer Lab VL: 0 Alka-Seltzer Reaction Before the reaction Mass: Observations: After the reaction Mass: On page __ in your INB, create the following:

25. Alka-Seltzer Lab VL: 2 1.Add water to your Ziploc bag and close it (half full). 2.Place bag of water and Alka-Seltzer tablet on the triple beam balance and find the combined mass. Record in your INB. 3.Without letting the tablet go into the water, add the tablet to the bag and zip it closed again. 4.Let the tablet drop in and observe the chemical reaction. Do not open the bag! 5.Find the mass of the closed bag after the reaction. Record in your INB.

26. Law of Conservation of Mass - p. VL: 0 Law of Conservation of Mass: Matter is not created or destroyed in a chemical reaction The number of atoms in the Reactant must equal the number of atoms in the Product.

27. Law of Conservation of Mass VL: 0 Video: Law of Conservation of MassLaw of Conservation of Mass

28. VL: 0 Complete the handout: 1.Count the number of atoms for each element on the Reactant side. 2.Count the number of atoms for each element on the Product side. 3.Is the equation balanced? Yes or No