SHS2 Chemistry · Semester 1, Week 1
Matter and Its Properties
Full lesson notes coming
Notes for this lesson are being prepared. The curriculum details below are complete and ready to use for your planning.
Curriculum details
- Strand
- Physical Chemistry (Strand 1)
- Sub-strand
- Matter and Its Properties (1.1)
- Content standard
- 2.1.1.CS.1 - Demonstrate knowledge and understanding that energy changes occur in chemical reactions as a result of reorganization of atoms at different rates. 2.1.1.LO.1 Describe the different energy changes that occur as a result of reorganization of atoms. 3 Gender Equality and Social Inclusion 4 Socio-Emotional Learning 2.1.1.LO.2 Use the concept of chemical kinetics to explain that chemical reactions proceed at different rates depending on their conditions and design experiment to investigate these conditions.
- Indicator
- 2.1.1.LI.1 - Explain the various standard enthalpy changes that occur and carry out calculations to determine them.
- Suggested placement
-
Semester 1, Week 1
(Week 1 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
- Curriculum reference
- NaCCA curriculum document, p. 62
Exemplars (from the NaCCA curriculum)
Demonstration: Use hot water in a bottle to demonstrate and come out with the meaning of the terms chemical system, surrounding and distinguish between open, closed and isolated systems Collaborative Learning: - In small-mixed ability groups, (a). Discuss the meaning of chemical energy, enthalpy and enthalpy changes during chemical reaction. (b). Explain that chemical reactions are accompanied by enthalpy changes that can be exothermic or endothermic and give examples. - Watch video to reinforce the concept of endothermic and exothermic reactions. Activity-Based Learning: - Draw a simple enthalpy profile diagram to show endothermic and exothermic reactions. - Explain the following terms: standard enthalpy change of reaction, standard enthalpy change of formation, standard enthalpy change of combustion, standard enthalpy change of neutralization, standard enthalpy of solution and hydration. - Carry out calculations to determine their value and discuss their importance. Teaching and Learning Materials: - * Worksheets: for drawing and labelling enthalpy profile diagram. * Worksheets for supporting calculation of standard enthalpy changes. * Worksheets with task on applying Hess' law to calculate enthalpy of reaction. * Calculator * Hot water * Hydrochloric acid * Sodium hydroxide pellets * Thermometer * Copper sulphate * Zinc powder * Virtual lab on calorimetry * Use of gas syringe * Chemical balance * Calcium chloride - * Probe - Beakers (100ml and 400ml) - Ammonium chloride * Calorimetry setup * Conical flask * Beakers * Marble chips * Hydrochloric acids * Kits for sulphur-clock experiment * Kits for investigating effect of of H O 2 2 * Graph sheets - WEBSITE - Videos on the topic:khanacademy.org - catalyst on decomposition Assessment (2.1.1.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 3 Strategic reasoning.