State Objectives:

N.12.A - Students understand that a variety of communication methods can be used to share scientific information. (Using data, Record-keeping, Accuracy, Safe Experimentation, Models.) N.12.B – Students understand the impacts of science and technology in terms of costs and benefits to society. (Risks and Benefits, Ethical Behavior, and Collaboration.)

E.12.A – Students understand heat and energy transfer in and out of the atmosphere and influence weather and climate. (Weather.) P.12.A – Students understand that atomic structure explains the properties and behavior of matter. (Properties of Matter and Mixtures and Compounds.) P.12.C – Students understand that there are interactions between matter and energy. (Forms and Uses of Energy.)

16 – Thermodynamics: The student will… 16.1 –define Thermodynamics –distinguish between endothermic & exothermic reactions –analyze the concept of enthalpy & changes in enthalpy –make calculations from thermochemical equations –interpret reaction energy diagrams for endothermic & exothermic reactions –interrelate enthalpy, entropy, & temperature to free energy –discuss various issues involving chemistry & the environment.

-Students will have available NH 4 NO 3(s), CaCl 2(s), NaCl (s), thermometer, scale, and other measuring apparatus -Students will need to design and carry out experiment to calculate ΔH soln in kJ/mol. (movie link)

-Students will need to design and carry out an experiment in which the specific heats of asphalt and concrete are determined

-students will perform the Albedo vs. Temperature lab activity by Fraser, Seeley, and Underkoffler

-Students will work in groups to prepare a powerpoint presentations dealing with alternative sources of energy.