Ideas for Launching the Oxidation-Reduction Reactions: Lemon Battery,
Curriculum Specific Expectation: F1.2 analyse health and safety issues involving electrochemistry (e.g., corrosion of metal pipes in drinking water systems) [AI, C]
Show students the photograph on the left:
Source of the photograph: http://thenailthatsticksup.com/wordpress/wp-content/uploads/2012/02/3751906254_127c7036f9_o.jpgAsk Students the following:
Allow students to watch the following video prior to beginning the lesson.
Show students the photograph on the left:
Source of the photograph: http://thenailthatsticksup.com/wordpress/wp-content/uploads/2012/02/3751906254_127c7036f9_o.jpgAsk Students the following:
- What is the type of reaction shown in the photograph? Why do you think chemists initially referred to combustion reactions as oxidation reactions?
- What are oxidation-reduction reactions and how are they characterized
- How do oxidation-reduction reactions apply to electrochemical cells?
- How do galvanic and electrolytic cells function and what are some applications of these cells
Allow students to watch the following video prior to beginning the lesson.
CONTENT
Science Technology Society and Environment based Approach
Science Technology Society and Environment based Approach
- This expectation can be met via an STSE approach. Provide students with the Lesson 1 STSE approach document and ask them to read the Health and Safety Issues http://www.nrel.gov/docs/legosti/old/22452.pdf
- Using the above exemplar ask students to Construct Electrochemical technologies that can create a safe and healthy environment http://www.youtube.com/watch?v=tUvkXET9MbI (see below)
Integrating Technology
CONSOLIDATION
RESOURCES
- Ask students to use www.xpresslab.com This is an excellent resource because students can voice their content via online videos and it allows teachers to access the website as well. Please note each video must only be 3 minutes long.
CONSOLIDATION
- Ask students to view the videos on xpresslab lab. Please note once the teacher has created the xpress lab account he/she will have to provide the students access to the material such that they can view it as a class.
RESOURCES