Water Project- Frank by Macy Frank

Water Project- Frank by Macy Frank https://padlet.com/548401/yv1q9ynzlb45 Chemistry 2nd Hour en-us 2017-04-23 15:12:55 UTC 2023-03-22 09:54:15 UTC hello@padlet.com How is water set up? 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/167688755 To understand the chemistry behind water, we first must understand the shape and polarity of the molecule. The two hydrogen atoms and the one oxygen atom create a bent structure due to the lone pairs repelling one another on the oxygen atom. Oxygen is more electronegative, so always wanting more electrons, and is continuously pulling the electrons from the hydrogen atom. This is creating a slightly negative charge on oxygen and slight positive on hydrogen creating the polar molecule. ]]> 2017-04-23 15:48:48 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/167688755 Video! 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/167690897 2017-04-23 16:20:49 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/167690897 Universal Solvent 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/167839663 Water is a universal solvent due to being able to dissolve many different substances, like the nutrients we need. Water is a polar molecule, creating a positive, oxygen, and a negative, hydrogen, end to the molecules. With a positive and a negative end to the molecules it can easily attract other molecules and attach to them by creating a hydrogen bond. As water travels in the ground or into our body, it can grab nutrients and have them dissolved. Water has such a strong desire of other molecules that it can disrupt the the attractive forces holding the other molecule together and dissolve it. This is where water gets the name "universal solvent" because it is able to dissolve so many different substances. Water dissolves additional nutrients and when we drink the water we gain the nutrients. ]]> 2017-04-24 14:14:18 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/167839663 What does water do in our body? 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/167844272 Water is a vital part in our body. A human's body is 60% water. This water does a variety of things through out the body. Water will keep out cells alive, keep our body temperature regulated, keeps chemical reactions occurring and transports nutrients and removes waste. One organ in our bodies that needs water is the kidney. The kidneys job is to collect all the waste in our body and dispose of it. Water will go through the kidney, and being the great universal solvent it is, it collects and absorbs all the waste and disposes it out of our body. Water disposes of these wastes through urine. Water is also a main component of blood and blood is the part of our body that is able to transport all nutrients to different parts of the body. Blood keeps the nutrients circulating throughout the body and water is needed to keep this going. ]]> 2017-04-24 14:26:31 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/167844272 Surface Tension 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/167846805 Surface tension is how multiple water molecules are able to attach through hydrogen bonds and create a strong surface. Water molecules are slightly polar creating a positive end by the oxygen and a negative end by the hydrogen. Opposites attract, so hydrogen from one molecule attaches to a oxygen from another molecule creating a hydrogen bond. The water molecules create many different hydrogen bonds making the surface strong. This allows small objects to float on top. During the purification process of water, the small particles of dust and waste we don't want in our water float to the top and won't enter our body. Even in bodies of water, without surface tension all the dust would sink to the bottom killing all ecosystems. Surface tension is needed for ecosystems in water and to purify the water we put into our bodies. ]]> 2017-04-24 14:33:31 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/167846805 Cohesion 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/167849479 Cohesion is the ability of multiple molecules creating bonds. Cohesion creates the surface tension of water. Once again, being a polar molecule, water molecules create strong hydrogen bonds. ]]> 2017-04-24 14:40:28 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/167849479 Water Cycle 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/167853008 As part of the water cycle, after precipitation, water tends to run off into the ground or into bodies of water. During this step of the cycle, water is absorbing and grabbing nutrients and chemicals. This step is crucial in order to get the additional nutrients into our water that we drink. But, if the world continues to pollute the water like we are now, we will have less and less clean water to drink. Even with the purification processes, not all of them do the complete job needed to have the safe water. Even today bottled water does not have to be regulated under the Safe Drinking Water Act. The bottled water could be less safe than tap water because it isn't as regulated by the government. The human population is very important in keeping our water clean and healthy to drink. The polluted water never goes away, it stays in the water cycle and continues to stay in our environment. ]]> 2017-04-24 14:50:02 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/167853008 Sources 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/167946096 http://www.livescience.com/52332-why-is-water-needed-for-life.html

]]> 2017-04-24 19:06:20 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/167946096 Topic 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/168383084 Water is important to life because it is able to carry nutrients into our body we need and also able to carry out waste we don't want in our body. ]]> 2017-04-26 14:23:18 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/168383084 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/168389422 2017-04-26 14:39:15 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/168389422 Video! 548401 https://padlet.com/548401/yv1q9ynzlb45/wish/168391786 2017-04-26 14:45:15 UTC https://padlet.com/548401/yv1q9ynzlb45/wish/168391786