2.  Climate is the average condition of athmosphere and ocean in scale from some to even milions of years. Climate changes come from external factors such as: the amount of reached sunbeams or internal factors like human work or influence of nature.

3.  Water is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of living things. As a chemical compound, a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water is a liquid at standard ambient temperature and pressure, but it often co-exists on Earth with its solid state, ice; and gaseous state, steam (water vapor).  Water covers 71% of the Earth's surface. It is vital for all known forms of life.

5. Nr.Task Results A1Analysis of water 1Name of the lake Złotnickie Lake (niem. Talsperre Goldentraum) Arise in outcome of dividing river with dam below town Gryfów Śląski in 1924. Capacity of reservoit is 12,4 milon cubic meters and surface of lake is 120 ha. Its main aim is retention and production of electric energy. There are some campsites, recreational craft rentals and small resorts next to the lake. Location of the lake Between Gryfów Śląski and Leśna Position of the lake On Kwisa river 2Drawing of the lakeOn separate sheet 3Types of trees Coniferous mixed forest; oak, birch, larch, rowan tree, linden, beech 4Position of the lake Geographical location 51°01 ′ 05 ″ N 15°22 ′ 16 “E Circuit Surface 1,2 km2

6. Lenght, width, Depth Depth max. 22m Volume 12,4mln m3 Tributary/Outflow Kwisa river Case for resarch of water pH In the field from 4,5-9,0 is 7 In the field from 6,0-8,0 is 7,5 Contents of nitrate NO2= 0,025 NO3=0 Contents of phosphates PO4=0,0 Contents of ammonium ions NH3= 1,0 In the field from 4,5-9,0 is 0,01 In the field from6,0-8,0 is 0,02 The rest of properties Smell Peculiar, characteristic for water reservoir Limpidity transparent Living organisms and lifeless substances A variety of fish and algae

7.  As a result of chemical testing of Lake Złotnickie, contamination was not observed.  The following results were obtained:  Water reaction is in the range of 7-7,5 which is within the normal range (6,5-9,0)  Lack of nitrates (0,025 mg/l ), phosphates(0,00 mg/l ) and iron(0,00 mg/l ),  While the concentration of nitrites (0,0 25mg/l ) and ammonium compounds (0,01 mg/l ) occurred in trace amounts, it is within the normal range.  Water hardness: soft water

8.  Reaction pH 6,5 – 9,0  Hardness: very soft water below 5,6°dH soft water 5,6 – 11,2 °dH Medium water hardness11,2 – 19,6 °dH Hard water19,6 – 30,8 °dH Very hard water above 30,8 °dH  The concentration of nitrites 0,05 mg/l  Nitrate concentrations7,0 mg/l  The concentration of ammonium nitrate3,0 mg/l

9.  Soil, pedosphere – biologically active (to 2 m thickness) surface layer of the earth's crust, formed in the process of creating soil from matrix under the influence of soil-forming factors. The soil consists of mineral and organic matter.

11. A2Analysis of soil 2.1Bottom of the lake a) The volume of water which has passed through the soil 128ml b) The volume of water absorbed by the soil 72ml c) Absorption properties of the soil High water absorption d) Surface temperature in °C 20 °C e) The temperature at the depth20 cm °C 14 °C 2.2Soil samples a)Observation of the reaction Weak bubble reaction a)Assessment of the calcium content in the soil 1% do 3% Low calcium content

12.  - pH of soil is 5  - low bubble reaction indicates a low content of calcium 1% do 3%  - the analysis for maximum water absorbtion capacity indicates that it is – Sand with humus (52,8%)

16. The names of people who took the samples:Maniecka, Tabańska, Gwiazda 2.Class/School: ZSP Biedrzychowice II TŻiUG 3. Number of the sample: 1 4. Location: Jezioro Złotnickie 5. Height above sea level: 6. Weather conditions:  Lack of rainfall during the last week  Occasional rain in the past few days  Heavy rains in the past days

17. 7. Landform:  steep slopes  Slightly sloped  Moderately sloped  flat 8. The degree of slope  flat  Slightly sloped  moderately slope  steep 9. Position with respect to the compass- South- West

18. 10. Bedrock material: the type of soil  Brown soil  Rainfall – glial soil  Rendzina 11. Topsoil:  Black earth  humus  Raw humus 12. Wetness:  Dry  Moderately dry  moist  Very moist  wet 13. Flora- forests