Science+Fair




 * Journal:**

December 16, 2010 Person present to perform and record: Dana Hogan Environmental conditions of room: 23˚C 1. 4 pieces of wood placed in empty containers (control) 2. 4 pieces of wood placed in 30mL distilled water (rain) 3. 4 pieces of wood placed in 30mL distilled water and .6g salt (salt water) 4. 4 pieces of wood placed in 15mL distilled water and 15mL acid (acid rain) 5. 4 pieces of wood places in 30g soil (soil) 6. pH balanced of each solution tested a. Rain: pH 7 b. Salt Water: pH 7 c. Soil: pH 7 d. Acid Rain: pH 1

December 17, 2010- January 3, 2011 Environmental conditions of room: 23˚C 1. All wood samples left in sealed containers

January 4, 2011 Person present to perform and record: Dana Hogan Environmental conditions of room: 23˚C, area found as it was left 1. Strength of all wood samples tested 2. Quantitative Results (average amount of force required to break wood sample) a. Control: 23.33 N b. Rain: 12.75 N c. Salt Water: 10.09 N <span style="font-family: 'Times New Roman',serif; font-size: 12pt;">d. Soil: 9.6 N <span style="font-family: 'Times New Roman',serif; font-size: 12pt;">e. Acid Rain: 5.47 N <span style="font-family: 'Times New Roman',serif; font-size: 12pt;">3. Qualitative Results <span style="font-family: 'Times New Roman',serif; font-size: 12pt;">a. Wood samples in acid rain appeared discolored (beige/pinkish color) <span style="font-family: 'Times New Roman',serif; font-size: 12pt;">b. Wood samples in salt water and the salt water itself had a brownish, gooey mold <span style="font-family: 'Times New Roman',serif; font-size: 12pt;">c. Wood samples in rain appeared slightly yellowed <span style="font-family: 'Times New Roman',serif; font-size: 12pt;">d. Wood samples in soil appeared unaffected <span style="font-family: 'Times New Roman',serif; font-size: 12pt; margin-left: 1.2in;">e. Soil was drier than when the wood samples were placed in it