2. April 15, 2013 AGENDA: 1 – Bell Ringer & Part. Log 2 – CN: Energy in Chemical Reactions 3 – Reflection 4 – “We Do” Practice 5 - “You Do” Practice Today’s Goal: Students will be able to contrast exothermic and endothermic reactions. Homework 1. Exothermic & Endothermic Reactions 2. Work from WEEK 30 is due Friday 3. EC: Report Card Pick-Up is Thursday!

3. Monday, April 15 Objective: Students will be able to contrast exothermic and endothermic reactions. Bell Ringer: What do you plan on doing in the second half of this semester to ensure that you succeed? 5 minutes!

4. 4 MINUTES REMAINING…

5. Monday, April 15 Objective: Students will be able to contrast exothermic and endothermic reactions. Bell Ringer: What do you plan on doing in the second half of this semester to ensure that you succeed? 4 minutes!

6. 3 MINUTES REMAINING…

7. Monday, April 15 Objective: Students will be able to contrast exothermic and endothermic reactions. Bell Ringer: What do you plan on doing in the second half of this semester to ensure that you succeed? 3 minutes!

8. 2 MINUTES REMAINING…

9. Monday, April 15 Objective: Students will be able to contrast exothermic and endothermic reactions. Bell Ringer: What do you plan on doing in the second half of this semester to ensure that you succeed? 2 minutes!

10. 1 MINUTE REMAINING…

11. Monday, April 15 Objective: Students will be able to contrast exothermic and endothermic reactions. Bell Ringer: What do you plan on doing in the second half of this semester to ensure that you succeed? 1 minute!!!

12. 30 seconds Remaining…

13. Monday, April 15 Objective: Students will be able to contrast exothermic and endothermic reactions. Bell Ringer: What do you plan on doing in the second half of this semester to ensure that you succeed? 30 seconds!!!

14. 10 Seconds Remaining…

15. BELL- RINGER TIME IS UP!

16. April 15, 2013 AGENDA: 1 – Bell Ringer & Part. Log 2 – CN: Energy in Chemical Reactions 3 – Reflection 4 – “We Do” Practice 5 - “You Do” Practice Today’s Goal: Students will be able to contrast exothermic and endothermic reactions. Homework 1. Exothermic & Endothermic Reactions 2. Work from WEEK 30 is due Friday 3. EC: Report Card Pick-Up is Thursday!

17. Monday, April 15 Objective: Students will be able to contrast exothermic and endothermic reactions. Bell Ringer: What do you plan on doing in the second half of this semester to ensure that you succeed? REVIEW

18. Cornell Notes  Topic: Energy in Chemical Reactions (Exothermic vs. Endothermic)  Date: 4/15/2013  Energy is the ability to do work or produce heat.  Kinetic energy = energy of movement  Potential energy = energy of position  Chemical energy = energy of chemical reactions Describe energy.

19. Cornell Notes (continued)  Chemical potential energy is the energy stored in the reactants of a chemical reaction.  Measuring energy: Universe = Surroundings + System SurroundingsSurroundings System HeatHeat EndothermicExothermic Explain chemical potential energy.

20. Cornell Notes (continued) Compare and contrast exothermic and endothermic reactions. ExothermicEndothermic A chemical reaction where energy is released (exo = exit) Reactants  Products + HEAT Examples: burning exploding freezing (liq  sol) condensing(gas  liq) sound temperature of surroundings increases A chemical reaction where energy is absorbed (endo=indoor) Reactants + HEAT  Products Examples: growing melting (sol  liq) boiling (liq  gas) cooking temperature of surroundings decreases

21. Reflection Answer the following reflection question:  Describe one way you would be able to tell if a chemical reaction was endothermic or exothermic. What does this mean?