Investigating water lab
Station 1: In station 1 we tested to see if you put water and alcohol drops on your hand, which one would feel cooler. When we put the drops on our hands the water felt cooler. I think it felt cooler because it is suppose to cool you off when you are hot and that's why we sweat, because the water hold the heat inside while keeping us cool. Also, the alcohol evaporated fast so it didn't get to hold much heat as the water did
Station 2: In station 2 we tested how many drops can fit onto one penny. Before we started we had to predict how many drops could fit on 1 penny. Then as we did this I figured that the slower and smaller you put the drops the more can fit. It came up to be 34 drops. Before over flowing it created a water bubble.
Station 3: In station 3 we tested what would happen if we placed 1 drop of water, corn syrup, and alcohol on wax paper. The water makes a bubble on the wax paper, so does the corn syrup. However, the alcohol didn't because it evaporated fast while on the other hand the water and corn syrup didn't. I learned that water can hold up a lot of heat, without evaporating.
Station 4: In station 4 we tested how many paper clips can float in a beaker of water. At first we predicted how many paper clips can float on water, and I predicted 28. As we used the tweezers and carefully place each paper clip on the water, it started to balance itself. Once we placed each paper clip the surface tension got heavy and all of the paper clips sank. The weight was too heavy and from there I counted them and only 11 survived on water without sinking.
Station 5: In station 5 we tested the adhesion on a graduated cylinder. When we put water in it the line was not straight. It was not straight because the adhesion attraction between the water and glass attracted each other so it stuck. The water property of adhesion is important to our living system because if we think of our body The cells of the liver, for example, have to stick together as the liver is developing, but not stick as tightly to the surrounding cells, so that the liver can become a distinct organ in our body.
Station 6: In station 6 we tested capillary action with water, paper towels, and food coloring. What we did was put blue food coloring in the water and place the paper towel in it standing up. After the weekend we saw that it was dissolving to the top, but part of it was falling because of the weight. Capillary action would help the trees and plants because the water would go into the roots and make it's way up to the top of the plant and that's how the whole plant gets it's water and stays alive.