Hotandcold

Hot and Cold
For this topic you will be assessed on your ability to demonstrate and teach the rest of the class about one of the following topics:
 * Convection,
 * Conduction,
 * Radiation,
 * Absorption or
 * Evaporation.

//You will be placed into groups and given a topic.// //You have two lessons to prepare your topic and one to present your information and demonstration.// //Your presentation may be filmed and used as a guide to next years students :)// 8 Blue Groups:

Groups need to:
 * select a group leader to keep everyone on track
 * define each term and create “on board” notes for their concept
 * answer the Over To You questions and use them to add to the notes
 * select a prac demonstration (use the first lesson to create an apparatus list and the second lesson to practise the prac)
 * make the presentation engaging and fun!

Over To You questions

 * Conduction/Insulation (p152 - Q 3, 4, 9, 10)
 * Convection (p155 - Q 1, 3, 8, 10)
 * Radiation (p158 - Q 2, 4, 5)
 * Absorbers/Emitters (p158 - Q 6, 7, 9)
 * Evaporation (p161 - Q 4, 6, 8)

Design an energy efficient house.




before you begin... __Links__: Energy efficient houses [|1], [|2], [|3], [|4], [|5], [|6], [|7], [|8], [|9], 10
 * discuss how you will measure its efficiency.
 * what materials are available to you realistically?
 * who you will work well with?
 * where you will keep your materials?
 * how will you draw your plans?
 * how you will document your progress?
 * how you will present your findings?
 * how will you document your research?
 * how will you explain the advantages and challenges of building an energy efficient house in real life?

Method
 * 1) Design your house on paper
 * 2) Build your house and if sunny test its energy efficiency outside. Possible methods include...
 * Read temp from a thermometer inserted through a hole in the roof into a 50ml beaker of water. Record the changes every 5min for 30 min. Record sheet.
 * Recording ice-block loss of mass in 5 min or per min....
 * 1) Report on your progress, findings, thoughts and interpretation of your results in a 2 min video. Each person must contribute. Submit on SIMON.
 * 2) [[image:housedirections.jpg]]

Grading : You will be marked on...
 * creativity (originality, personal touches, aesthetic, lateral thinking, flair,
 * effort (personal contribution to the design, building, recording of temperature changes and graph, explanation of results, filming)
 * explanation (apply the theory you have learnt to explain how your design work to modify temperature, catch water, make life comfortable for the inhabitants)
 * effectiveness of temperature regulation (relate to the aim: e.g. to keep cool, to warm up with the sun's rays to a certain temp., to catch water from the roof to water the garden)

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