Weather Conditions - job of 1A ICBuonarroti, Marina di Carrara, Italy

1. Comenius Project Weather conditions LaFrançaise, February 2011 COMPREHENSIVE SCHOOL “ M. BUONARROTI” Marina di Carrara Presents

3. Our tools The rain gauge The windsock The water barometer The psycrometer

7. Our water barometer Step1: water level is the same Step2: Outside, the water level of the straw is down Step3: near the radiator, the water level of the straw is up

8. How to build and how to use our psycrometer. How to measure indirectly the relative humidity 1 2 3 4 5

9. Calculating relative humidity: temperature of the dry bulb thermometer: 15 ° C wet bulb thermometer temperature: 12 ° C difference (dry bulb - wet bulb): 15 ° C - 12 ° C = 3 ° C Therefore the relative humidity is 71%

10. Finally we have the instruments and we can begin to collect the observations and to record data In our little “WEATHER STATION” we have the thermometer, the hygrometer and the barometer

11. Our data: hand made graphs

12. Our data: digital graphs November’sTemperature AVERAGE TEMPERATURE OF NOVEMBER: 14 ° C GIORNI GRADI °C 01/11/2010 16 02/11/2010 16 03/11/2010 15 04/11/2010 17 05/11/2010 16 06/11/2010 17 07/11/2010 15 08/11/2010 16 09/11/2010 13 10/11/2010 12 11/11/2010 15 12/11/2010 15 13/11/2010 15 14/11/2010 17 15/11/2010 18 16/11/2010 18 17/11/2010 14 18/11/2010 10 19/11/2010 17 20/11/2010 13 21/11/2010 14 22/11/2010 13 23/11/2010 12 24/11/2010 13 25/11/2010 11 26/11/2010 9 27/11/2010 9 28/11/2010 10 29/11/2010 14 30/11/2010 12

13. November: Weather conditions n. days Weather conditions 5 sereno 9 variabile 4 nuvoloso 12 piovoso 0 temporale 0 neve

14. Weather Conditions of November CALM PARTLY CLOUDY CLOUDY RAIN THUNDERSTORM SNOW 1 X 2 X 3 X 4 X 5 X 6 X 7 X 8 X 9 X 10 X 11 X 12 X 13 X 14 X 15 X 16 X 17 X 18 X 19 X 20 X 21 X 22 X 23 X 24 X 25 X 26 X 27 X 28 X 29 X 30 X

15. Relative humidity of november days humidity 08/11/10 70% 09/11/10 67% 10/11/10 74% 11/11/10 62% 12/11/10 78% 13/11/10 14/11/10 15/11/10 71% 16/11/10 66% 17/11/10 52% 18/11/10 80% 19/11/10 56% 20/11/10 21/11/10 22/11/10 74% 23/11/10 70% 24/11/10 65% 25/11/10 74% 26/11/10 72% 27/11/10 28/11/10 29/11/10 30% 30/11/10 45% range frequency 30-50% 2 51-70% 8 71-90% 7

16. Our laboratory experiments The acid rain The clouds in a jar

19. We have different ph values. The more acidic substance is the hydrochloric acid, the less acidic one is the bicarbonate. Table sample Universal paper colour Ph value Distilled water yellow 7 Rain water Light green 6 Vinegard Red 3 Hydrochloric acid Deep red 1 Bicarbonate Light blue 12 Dishwashing liquid Yellow 7 Saliva Light green 6

20. - damages to the trees that get sick and dry - acceleration of the melting of ice - pollution of the lakes, killing animals and plants that inhabit them - attacks and damages to the marble monuments 1908 1968 Adverse effects of the acid rain on the environment

21. Could also it occur in Carrara? What will happen to our old cathedral, completely covered with fine white marble from the quarries? The rose window in 2011 … The rose window 50 years later

22. Three special events

23. November begins with bad weather conditions. Heavy rains and landslides occur in and around Carrara

24. It snows today! The snow, 2010 – December 17th

25. … some unusual landscapes

27. Scientific project: Tiziana Perfetti Texts: Maria Antonietta Caporale Graphics and technical support: Claudia Tomasi Supervision: Rossella Bragazzi See you in Carrara! by pupils of 1A - Secondary school 3A,4A e 4B Primary school