84 제 55 회경기도과학전람회 ph 29. 5. 11 ( ) ( ) 5
Ⅰ. 1 Ⅱ. 1 Ⅲ. 1 Ⅳ. 3 Ⅴ. 3 Ⅵ. 4. ph 4 1). ph 4 2). ph 1. ph 16 1). ph 16 Ⅶ. 23 Ⅷ. 24 Ⅸ. 24
ph 1..,.... 2.. ph? 1) ph? () 2) ph? (). ph? 1) ph? 3.. ph? -. potential of Hydrogen. ph(). ph ~14, ph 7,..? -..,,,.,. 1
.? -.. 1 1.... () (), ph(ph 7~9), ph, -238mv..? - (closed system),,,,.. ( ). ph (NH4). ph. (NO2).. (NO3)..... NH3 ----------------->No2 --------------------> No3,.. 15.,,. 2
4.. 1) ph? () -.. 2) ph? () -,.. ph? -. ph ph. 5. : 28 5 1 ~ 28 1 31 3
6.. 1) ph? () ) (1) ph () : ph(ph 4.9, ph 7.57, ph 9.65), 9, 9 () 1 ph 15. 2. 3. 4 1~2. () 1 : ph 2 : 3 :,, ) (1) : 5 25 ~ 6 9 (16 ) ph 4.9 ph 7.57 ph 9.65 5/25 5/27 6/1 6/6 6/9 A : B : C : A : B : C : A : B : C : A : 2 A : 6 3 B : 2 B : 3 C : C : A, B : 3 A : C :. B : C : A, B A, B A : A, B : B :. 4
(2) 1. 2. 3. 4. 1. ph 7.57 A (3) 1,,? -. ) (1) ph () : ph (ph5.67, ph5.76, ph6.29, ph7.25, ph8.83, ph9.73), 18, 18 () 1 ph 15. 2. 3. 4 1~2. 5. 2. 5
() 1 : ph 2 : 3 :,, ) (1) : 6 6 ~ 7 15 () - 1. - < : cm> ph5.67 ph5.76 ph6.29 ph7.25 ph8.83 ph9.73 6/6 6/17.5 1 7 5 1 1 6/2.7 3.7 1 6.2 12 11 6/23.7 4 13 1 16 13 6/26 14 14 19 25 13 6/3 16 16 22 3 18 7/3 18 22 23 33 19 7/7 22 27 23 34 2 7/15 23 29 4 2 ph5.67 ph5.76 ph6.29 ph7.25 ph8.83 ph9.73 < 그래프 1. 뿌리관찰 > cm 6 4 2 7/15 ph5.67 ph5.76 ph6.29 ph7.25 ph8.83 ph9.73 < 그래프 2. 최종뿌리길이관찰 > 6
- ph 8.83. ph 6.29. ph 5.67, ph 7.25. () - 2. - < : cm> ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 6/6 6/17.1 2 1.5.1 2.1 6/2.1 5 6.7 1 8 3 6/23.5 7 12 4 25 7 6/26.7 11 25 4 67 13 6/3 4 44 65 13 17 54 7/3 8 77 18 17 15 76 7/7 18 98 17 5 25 15 7/15 28 99 221 79 262 232 :, : ph5.67 ph5.76 ph6.29 ph7.25 ph8.83 ph9.73 < 그래프 3. 줄기관찰 > ph5.67 ph5.76 ph6.29 ph7.25 ph8.83 ph9.73 < 그래프 4. 최종줄기길이비교 > - ph 8.83. 7
ph 9.73, ph 6.29. ph 5.67.. () - 3. - < : cm> ph5.67 ph5.76 ph6.29 ph7.25 ph8.83 ph9.73 6/6 6/26 3 6 4 9 6 6/3 1.5 5.5 7 7 9 8.5 7/3 3 9 8 7.5 9 8.5 7/7 4 1 8.5 7.5 9 9 7/15 4 1 8.5 7.5 1 9 ph5.67 ph5.76 ph6.29 ph7.25 ph8.83 ph9.73 < 그래프 5. 잎너비관찰 > 15 15 cm 1 5 1 1 5 4 7/15 ph5.67 ph5.76 ph6.29 ph7.25 ph8.83 ph9.73 < 그래프6. 최종잎너비비교 > - ph 5.67 ph. ph 8.83.. 8
(2) <6 26> 1 ph 5.67(B), ph 6.29(A), ph 9.73(A) 3. <6 3> 1... 사진 4. ph 8.83 줄기감는모습 <7 7> 1. 2. 3 ph 7.25(C) :. 5. 6. 7. ph 7.25 9
<7 15> 1 2 ph 8.83,,. 8. ph 8.83 9. 4! (3) 1 ph 8.83,,. 2 ph 5.67, ph 5.76, ph 9.73,. 3 ph 7.25. 4 ph 8.83.. 2) ph? () ) (1) : 18, ph(ph 5.67, ph 5.76, ph 6.29, ph 7.25, ph 8.83, ph 9.73), 18,, (2) 1. ( ph A, B, C ) 2. 3 2. 4 ph 2. 5. (3) 1 : ph 2 : 3 : 1
) (1) : 6 6 ~ 7 15 () 1 ph 5.76(A) ph 6.29(A). 2 7 15. 3 ph 7.25(B). 4 ph 5.76 ph 6.29. - 4. - < : > ph ph ph ph ph ph ph 7.25 5.67 5.76 6.29 7.25 8.83 9.73 (B) 6/6 6/2.5 1.5.2 6/23 21 14 15 8 15 17 6 6/26 41 41 38 28 4 33 7 6/3 8 79 77 65 8 64 28 7/3 98 113 112 85 1 83 55 7/7 121 16 152 116 115 111 73 7/15 182 214 215 184 148 159 96 ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 ph 7.25 < 그래프 7. 줄기관찰 > ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 < 그래프 8. 최종줄기길이비교 > 11
() 1,. 2 ph 5.67, 5.76, 8.83. - 5. - < : > ph 7.25 ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 (B) 6/6 6/26 1 1 9.5 8 1.5 9 7 6/3 12 12 11 9.5 12 1 8 7/3 12 12.5 11 1 12 1 8 ( : : : ) cm 15 1 5 15 1 5 6/6 6/26 6/3 7/3 날짜 ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 ph 7.25 < 그래프 9. 잎의너비관찰 > cm 14 12 1 8 6 4 2 7/3 14 12 1 8 6 4 2 ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 < 그래프 1. 최종잎의너비비교 > 12
() 1 ph 5.76 ph 6.29. 2 3, ph 7.25(B) 4~5. 3 ph 9.73. - 6. - < :> ph 7.25 ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 (B) 6/6 6/3 5 8 8 8 8 8 8 7/3 14 14 14 11 11 11 11 7/7 17 2 2 17 17 17 19 7/15 26 32 29 26 23 26 29 ( : 한잎자루에 2가지가자라서잎이 6장으로보임 : 한잎자루에잎이 4장, 5장나옴 ) cm 6 3 6 3 6/6 6/3 7/3 7/7 7/15 날짜 ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 ph 7.25 < 그래프 11. 잎의개수관찰 > cm 35 3 25 2 15 1 5 7/15 35 3 25 2 15 1 5 ph 5.67 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 < 그래프 12. 최종잎의개수비교 > 13
() <6 26> 1 ph 6.29 ph 9.73. 2 2 1,. 1. 11. <6 3> 1. 2 ph 9.73 2.. 12. 13. <7 7> 1 3, ph 7.25 4, 5. 14. ph 7.25 14
() - 7. ph 7.25 - A B C 7 25 5 7 29 2 7 3 5 8 1 7 8 1 3 15. 16. 17. 1 ph 7.25(B),. 2. 3. ( ) 4 5 3. 6. 18. (2) 1 ph 5.76, ph 6.29. 2 ph 8.83, ph 9.73,,. 3 ph 7.25. 15
. ph? 1) ) : 27, ph(ph 5.76, ph 6.29, ph 7.25pH 8.83, ph 9.73),,, 5(2.5),,,,,, set(, 35,,, ) ) (1). (2) 2.5. (3). (4) 3 5~6. (5), 2 1~2. (.) (6) ph. ) (1) : ph (2) :,, ph, (3) :,, 2) ) : 1 7 ~ 1 31 (1) 1 7 : ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 5 5 6 6 5 () (2.5). (). (2) 1 8 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 () ph 2. (). ph 9.73. 16
(3) 1 9 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 1~2 (). () 3.. (4) 1 1 () 1. (). () 4. (35) 7. (5) 1 11 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 () ph 5. () ph 9.73.. (6) 1 13 ().. (). (7) 1 14 () ph 5. () ph 9.73. 1. () ph 9.73. (8) 1 15 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73, 17
() 1. () ph 9.73. () ph 5.76. ( ) ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 19. (9) 1 18 : ph - 8. ph - ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 ph 4.5 6.5~7. 7.~7.5 7.7 7.8 8.5 () ph. (). () ph. () ph. () ph 9.73 ph. () ph 5.67. () ph. 2. ph (, ) (1) 1 21 : 1 (11) 1 22 : 18
- 9. 15 - < : > ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 3. 5. 5. 5. 5. 5..1.3.2.1.2.7 12.5 6 25 : -,.25 -, 1.5 -, 3 -, 5 - :.1 -,.2-.5 -, 1. - : ~2 -, 25~5 -, 5~1 -, 1 19
21. (), (), () () 15. (),,. () ph 5.76. 2
() ph 6.29,.. () ph 5.76 ph 6.29,. (). (). (12) 1 24, 28, 3 : 1. (13) 1 31 : ph - 1. ph - < : > ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 ph 5.5 6.5~7. 7.~7.5 7.5 7.5 7.5.25 3..25 1.5.12 ).3.8.3 3.3.3 2 12.5 12.5 7 2 1-11. ph - ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 1 18 4.5 6.5~7. 7.~7.5 7.7 7.8 8.5 1 31 5.5 6.5~7. 7.~7.5 7.5 7.5 7.5 1 8 ph 6 4 2 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 수돗물 1 월 18 일 1 월 31 일 < 그래프 13. ph 의변화 > 21
-12. () - < : > ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 1 22 3. 5. 5. 5. 5. 5. 1 31.25 3..25 1.5.12 6 mg/l4 2 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 수돗물 1 월 22 일 1 월 31 일 < 그래프 14. 암모니아의변화 > -13. () - < : > ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 1 22.1.3.2.1.2.7 1 31.3.8.3 3.3.3 2 25 2 15 1 5 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 수돗물 1 월 22 일 1 월 31 일 < 그래프 15. 아질산염의변화 > 22
-14. () - < : > ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 1 22 12.5 6 25 1 31 12.5 12.5 7 2 1 15 1 mg/l 5 ph 5.76 ph 6.29 ph 7.25 ph 8.83 ph 9.73 수돗물 1 월 22 일 1 월 31 일 < 그래프 16. 질산염의변화 > ) () ph ph 5.76 ph 5.5, ph 6.29 ph 6.7, ph ph 7.5. () 1 22., ph 6.29 3.. () 1 22, ph 8.83. () 1 22 ph 5.76 9.73, ph 8.83 2 1. ph 9.73. 4.. ph 8.83... ph 7.25.. 1), ph 9.73. 2) ph 6.29 ph 8.83.. 23
3) ph 8.83. 4) ph 8.83. 5) ph 5.76 ph 6.29 ph 7.5. 6) ph 9.73,. ph 9.73. 7) ph. ph,. 5.....,. 6. <> * * http://www.trofish.net/ http://www.greenfish.co.kr/ <> * -,, 47, 21 * - co., - 1.,, 26, -,, 26, WHY? -,, 22, WHY? -,, 22, WHY? -,, 25,, 28 7 24