My hypothesis was supported because each experiment did what I thought it would. The salt sank when it was inside of the hot and cold water. When salt was placed inside of the hot and cold water, it sank because of it weighing more than the cold and hot water. We can look at it in this way, salt water weighs more than fresh water. The weight of a cubic foot of salt water is 64.1 lbs. On the other hand, a cubic foot of fresh water only weighs 62.4 lbs. The numbers are different because the salt water has a higher density compared to fresh water. When salt is added to water then the molecules in water are different because they are really together and tight around the salt molecules. Adding salt also increases the volume of water by less than
On Wednesday, February 15th, I was able to have the opportunity to listen to Andrew Lipman. Andrew Lipman is the author of The Saltwater Frontier: Indians and the Contest for the American Coast. In the novel, he explained the life of Native Americans living in New England and on the coast of Long Island. During this time, most individuals relied on trading natural resources. In order for profit for the resources, the colonists and Native Americans used wampum. Wampum was used as a sacred gift in Native American culture as a peace offering, funerals and marriages. Colonialists had an advantage towards using wampum. They used beads as a commodity for furs. Native Americans relied on canoes for transportation. Canoes can hold up to fifty people.
The researcher conducting this experiment is trying to find out which salt- Epsom, table salt, and sea salt- will increase the boiling point of water the most. Sodium chloride is believed to increase the boiling point of water because when salt is suspended into the water, the sodium and chlorine ions leave the “salt crystals” and mix with the water molecules. (“Why does salt… raise boiling point of water?”, 2009).
2. What observation leads you to believe there is a force of attraction between water
Theatre as a unique, live art form does not only consist of theatrical performances that tell stories, but are significant as to how they cover certain topics that portray issues within the world. Because of this, theatre is an art form that can be used as a platform to discuss and bring awareness to issues that affect one’s community. The play, In the Red and Brown Water by Tarell Alvin Mccraney follows the upcoming of age story of Oya, a young African-American woman, that struggles to find her true self and identity within the projects of San Pere, Louisiana. With the presence of Yoruban tradition, In the Red and Brown Water explores the themes of poverty and racial injustices among minorities through the distinctive use of design clues,
5. Kellert, S.R. and E.O. Wilson, editors. 1993 The Biophilia Hypothesis. Island Press, Washington, DC
We were preparing for our trip to Salton Sea area. Our final destination was Salvation Mountain and Slab City. But abandoned cities by salton sea and dead sea itself certainly draw our attention to stop and investigate the area. We decided to avoid a freeway and get to the area through Joshua Tree National Park. We cut across Joshua Tree National park left Mojave desert and came out in Colorado desert right by Salton Sea. As soon as we reached the area i noticed a strange and unpleasant smell. The area had post apocalyptic look with the surrounding structures standing in ruins. The sea was the dull blue of a cataract, surrounded by small volcanoes, bubbling mud pots, and ragged, blank mountains used for bombing practice by the Navy and the Marines . It was hard to imagine that once upon the time this area was known to be a paradise , "a germ in a desert ". What happened here ? why this area that was once flourishing with tourists, new constructions, yacht clubs
The hypothesis for the glow sticks in different temperature experiment was accepted. The data used for the experiment that supports my hypothesis was that the glow stick in the glass cup filled with two hundred thirty-five milliliters of filtered cold water illuminated the longest. This glow stick in the cold water lasted on average of all three trials for ten hours and thirty-six minutes. The cold glow stick lasted three hundred and sixty-six more minutes compared to the lowest lasting time of which the hot water glow stick lasted. On average the hot water lasted four hours and nineteen minutes, and the room temperature glow stick lasted eight hours and fifty-seven minutes. I think the cold water lasted the longest because molecules move slow in cold water, causing it to slow the reaction down which made it last longer. In this experiment the outside factor might have been the color of the glow sticks which was pink. This may have also had an effect of how long
For thousands of years dreams of permanently diverting stream water from the Salt and Verde rivers to the arid desert lands of Arizona, through a myriad of canals, would finally come to fruition in the early twentieth century. Flooding and or droughts would always seem to destroy their early attempts at diverting the water. At the end of the nineteenth century, frustrated landowners formed a committee and with the help of Theodore Roosevelt came up with a Reclamation Act that took effect in 1902. This Act birthed the Salt River Project a multipurpose project that would generate hydroelectric power, deliver water, and provide flood protection. The Salt River Project was a dream come true, constructing massive dams and canals, that would supply
Even though saltwater contributes most of the evaporated water, it does not evaporate as fast as freshwater. Fresh water evaporates much faster because of what it is composed of unlike saltwater. Salt water obviously has salt and that is a component that is usually not evaporated. This problem slows down evaporation because the salt molecules are locked into the water molecules and it takes longer to separate them. This shows how much saltwater there is because fresh water evaporates very fast yet there is not enough of it to even compare to how much salt
The cotton ball filter left the least amount of salt in the filtered water. It’s trials averaged only 8.67 grams of salt left in the water. The water with the next lowest salt content is the water that came from the sand filter. The filter filled with sand let a mean of 13.3 grams of salt pass through it. Its trials have a range of 0.5 grams. The filters with the third lowest salt content in the water that passed through it are the charcoal filters. The charcoal filters took the longest to filter salt water through. However, the trials using the charcoal filter had an mean of 13.73 grams of salt remaining after the water had been filtered. The range of the trials was 1.3 grams. The filter with the highest salt content in its filtered water is the filter with sponges in it. The filters with sponges in them let the salt water pass easily through them. The mean amount of salt that passed through the sponge filters is 14.03 grams. The range was 1.4 grams. The mean amount of salt left after boiling the saltwater that did not go through a filter (the control group) is 15.5 grams and has a range of 0.5 grams. Overall, I observed that the more dense the materials in the filters, the less salt passes through
Drowning in salt water and fresh water is different, even though you would think it would be the same. Only around 10% of people who drown will drown in salt water, the other 90% drown in fresh water; more specifically, they drown in swimming pools. A person drowning in salt water can be dead from anywhere between five and thirty minutes, while in fresh water it can take anywhere between five and twenty minutes. That’s a ten-minute difference and it’s a big difference. So, why does it happen like this? Why can a person be more likely to drown in fresh water, which is generally more controlled than salt water? Why is there a ten-minute drowning difference? It all has to do with osmosis, both of the solutions react different with our bodies.
The last part of experiment 5, was learning about specific gravity and temperature. Specific gravity does not have any units, it is unitless. When measuring for the temperature, we used a thermometer to calculate the Celsius of the water, 10% sodium chloride, and isopropyl alcohol. The specific gravity uses a hydrometer to measure the gravity of the liquids. Using the hydrometer, to figure out the measurements we have to look at it from top to bottom. The water for specific gravity was .998 while the temperature of it was 24
The results of study one were the same as the purposed ideas. Yet in study two, their hypothesis was incorrect.
One evening, for dinner, I made my family’s favourite spicy grilled chicken. My kids took one bite of it and said it was disgusting. My husband looked at me and said, “Honey, you forgot your secret ingredient.” The secret ingredient for all my recipes is salt. I even add a pinch of salt to my sweet dishes, as salt enhances the sweetness in them, making the dish taste even sweeter.
that if all the oceans dried up, they would leave about 4,419,300 cubic miles of rock salt. That would be enough to cover all the United States except Alaska and Gawaii with a layer of salt more than 1½ miles deep. Salt was first taken from the sea by scooping out shallow holes along the seashore. Waves, breaking along the shore, filled the holes with brine. The sun and wind causes the water in the brine to evaporate, leaving behind the crude salt. This process was known as the solar method. The solar method is still used. But, to speed the process of evaporation, the brine is put in enormous iron pans placed over extremely hot fires. Salt obtained in this manner is very pure. But it has been estimated that a single salt plant should contain at least 5,000 acres of land to make the solar system practical. Salt is found beneath the ground in almost every part of the world. Sometimes the salt lies near the surface or even above it. Rocks of salt that appear above the ground are called salt licks.