KHS - Marine Science : Investigating Water Lab
Evaporative Cooling : Station #1 Water & Alcohol:
The alcohol is more cooler than the water. If alcohol was your sweat, you would be hotter because alcohol evaporates too quickly and does not carry a lot of heat with it as it goes away. In this experiment, we place a drop of water and a drop of alcohol next to each other on the back hand. Then we put it on our hand to see which one was cooler.
The alcohol is more cooler than the water. If alcohol was your sweat, you would be hotter because alcohol evaporates too quickly and does not carry a lot of heat with it as it goes away. In this experiment, we place a drop of water and a drop of alcohol next to each other on the back hand. Then we put it on our hand to see which one was cooler.
Water Tension /Cohesion - Station #2 Water on a Penny:
In this experiment we put as many drops of water as we can on top of a penny,you need to do this slowly and carefully. When dropping the water this bubbly will start to build up. The water bubble happens because of cohesion. when we put it into practice we realized that it takes 22 drops of water to cover a penny, without breaking the surface tension.
In this experiment we put as many drops of water as we can on top of a penny,you need to do this slowly and carefully. When dropping the water this bubbly will start to build up. The water bubble happens because of cohesion. when we put it into practice we realized that it takes 22 drops of water to cover a penny, without breaking the surface tension.
Surface Tension: Station #3- Water on Wax Paper:
Surface Tension Station #4 - Paper Clips on the Surface of a Cup of Water:
Adhesion: Station #5- Graduated Cylinder:
Put some water in graduated cylinder. The water line is not straight line across in glass container it is adhesion. The water property of adhesion be important in living systems because you can measure the amount of water that you are using.
Put some water in graduated cylinder. The water line is not straight line across in glass container it is adhesion. The water property of adhesion be important in living systems because you can measure the amount of water that you are using.
Capillary Action -Station #6 - Rolled up Paper Towel :
Place one end of rolled up paper towel in a cup to the other. Why would capillary action be important to plants and trees? Explain
Place one end of rolled up paper towel in a cup to the other. Why would capillary action be important to plants and trees? Explain