Teach Assist Resource Worksheets. Series 13 of 16. "Solar Energy"
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1 Teach Assist Teach Assist Resource Worksheets Series 13 of 16 "Solar Energy" Davidson & Hardy (Laboratory Supplies) Ltd Antrim Road Belfast BT15 3BL Phone: Belfast Fax: Belfast Web
2 Teach Assist Resources TeachAssist resources are written with the practical needs of science teachers in mind. Each resource covers a practical activity that is integral to the QCA schemes of work to provide quick and easy preparation for practical classes. Please feel free to photocopy the sheets to suit your needs. Each TeachAssist resource contains: Student worksheet with practical instructions and activities. Technicians' equipment list for a class of 30 students. Reference to allow trouble-free ordering of materials and resources. A summary table links each resource to the National Curriculum programme of study which allows TeachAssist practical activities to be quickly included into lesson plans and schemes of work. If you require other booklets in the series, please telephone the Griffin Education sales team or send your request to the following address:- Griffin Education Bishop Meadow Road Loughborough Leicestershire LE11 5RG 2
3 STUDENT WORKSHEET! Important information: Follow all the safety instructions that your teacher gives you. Solar energy Millions of joules of energy hit the earth each year in the form of sunlight. Solar cells can absorb the energy in sunlight. Solar cell Set up the solar cell and put it in the sunlight. What energy conversion is taking place in the solar cell? What energy conversion is taking place in the motor? Are these energy conversions 100% efficient? How is energy being wasted? Draw a flow diagram to show how the energy in sunlight is used to drive the fan. Electric motor and fan Do dark surfaces absorb more solar energy than shiny ones? Cling film cover Temperature probe and data logger Metal tray with 250ml of water 1.You will be given a shiny metal tray or one that has been painted black. 2. Put 250ml of water into the tray. 3. Cover the surface with cling film. Leave a small hole for the temperature probe. 4. Put the tray and logger into sunlight near a window. 5. Leave the probe in the water and record the temperature change during the lesson. 6. Download the data to a computer. View the graph to show how the water temperature has changed. 7. Compare your results to a group who have used the other type of metal tray. What happens to the temperature of the water? Does it go up or down? Does the temperature change more in the dark tray or the shiny one? Which tray has absorbed the most heat energy? What will happen to the temperature if the tray is left in sunlight for a long time? 3
4 TECHNICIANS EQUIPMENT LIST QCA Unit 7I: Energy resources Date: Room Time/Period: Equipment Class of 30 pupils, working in pairs. Quantity Check Out Back Solar energy cell and fan kit 10 Thin metal food trays (shiny) 5 Thin metal trays (painted matt black) 5 LogIT Explorer data loggers 10 LogIT explorer temperature probes ml beakers 10 Cling film roll Alternative to data loggers Thermometers 10 Important Information:! The activity contains procedures that can be hazardous. It should not be performed unless an appropriate risk assessment has been made. Water temperature can be monitored using a thermometer but regular readings must be taken. Do not remove the cling film to take readings. 4
5 ORDER REQUISITION Equipment Griffin Catalogue No. Page Unit cost ( ) No. Cost ( ) 250cm 3 beakers, borosilicate glass (pack of 10) FB Solar energy cell and fan kit XHV-150-E LogIT Explorer temperature probe CRD H LogIT Explorer (starter pack, Windows TM, USB) CRD N Alternative to data loggers: Thermometer -20 to +150 C, 30.5cm, mercury-free THL L Total cost VAT Order total Complete the order form above and place your order with Griffin Education in your usual way. Prices are correct at time of print, please contact the Griffin Sales Office or check on the Griffin Education website for the latest prices. By phone: By fax: By post: Davidson & Hardy (Laboratory Supplies) Ltd By [email protected] Antrim Road On-line: Belfast BT15 3BL 5
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