Science+Fair project

** science fair project **   **Hypothesis**    The smaller the size of the particle in a sand filter the less turbidity there would be in filtered water. ** Procedure **  -Cut the bottoms off of a few 2L bottles    -put a coffee filter over the nozzle of the bottle and seal it with a rubber band    -mix dirt and water together    <span class="_Tgc" style="font-size: 16px;">-place a jar or cup underneath the nozzle   <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;"> <span class="_Tgc" style="font-size: 16px;">-pour cup of clean water through the filter and let it go through for 5 minutes   <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;"> <span class="_Tgc" style="font-size: 16px;">-seal jar and put in refrigerator   <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;"> <span class="_Tgc" style="font-size: 16px;">- I will repeat these steps four other times but rearranging the layers differently but the sand layer will be on the bottom every time   <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;"> <span class="_Tgc" style="font-size: 16px;">-wait until the next day to see the dirt place itself on the bottom of the jar   <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;"> <span class="_Tgc" style="font-size: 16px;">-test the turbidity with a beaker and a turbidity card   <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;">** <span class="_Tgc" style="font-size: 16px;">Question  ** <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;"> <span style="display: inline !important; font-size: 13px; vertical-align: top;"><span class="_Tgc" style="font-size: 16px;">-  <span class="_Tgc" style="font-size: 16px; vertical-align: top;">Does decreasing filter particle <span style="display: inline !important; font-size: 13px; vertical-align: top;"><span class="_Tgc" style="font-size: 16px; vertical-align: top;"> size <span style="display: inline !important; font-size: 13px; vertical-align: top;"><span class="_Tgc" style="font-size: 16px; vertical-align: top;"> cause less turbidity? <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;"> <span class="_Tgc" style="font-size: 16px; vertical-align: top;">**Materials**  <span style="color: #222222; display: block; font-family: arial,sans-serif; font-size: small;">
 * <span class="_Tgc">Turbidity- **<span class="_Tgc">is the cloudiness or haziness of a fluid.
 * 1) 3 2L bottles
 * 2) stop watch
 * 3) sand
 * 4) bark
 * 5) gravel
 * 6) pure cotton balls
 * 7) mulch
 * 8) water
 * 9) dirt
 * 10) jars
 * 11) filters