Investigating The Difference Between Dry Ice And The Water

This article explains how fog is produced when dry ice and water react. One might think that the fog is made by water in the atmosphere but Kuntzleman questioned this common thought’s validity and explored dry-ice + water=fog at the molecular level. His first step was to accurately measure fog density by using the following equation: fog density= -log (I/I_0 ) with “I_0 being the intensity of incident light and I being the intensity of light that travels through the fog” (Kuntzleman, 644). This allowed Kuntzleman to determine at what point fog had been made.

Imagine a world with no trees, no healthy grass, no glaciers, or no living creatures at all. The cause of this tragedy could be the increase in heat in the Earth’s atmosphere due to global warming. If global warming continues to increase, the world will be left empty. The Earth has been around for a long time, and many feet have walked on it, but no one has walked on this Earth without trees, grass, or creatures. With global warming, the Earth’s meteorology gets too warm, and all of the glaciers will start to melt. Global warming occurs when an increase in the carbon dioxide levels causes the temperature of the Earth’s atmosphere to rise. The Earth’s meteorology is often a subject explored in literature. For example, “Chronicles of Ice” talks

The type of cold pack presented here contains ammonium nitrate, which is a white crystalline substance. When these crystals react with water they split into positive ammonium ions and negative nitrate ions. Due to the energy expended by the water in order to dissolve these crystals, the water becomes colder.

Dry ice is a solid form of carbon dioxide that produces a cold dense mist. I first learned what Dry Ice was in fifth grade, this was due to the fact that my class had taken a field trip to River Legacy Park. Where we saw an experiment and learned facts about dry ice. This led to a fascination with dry ice, in this experiment I will test whether the temperature of water and soda affect when poured over Dry ice. Dry Ice has multiple purposes some of which, is chemotherapy, to carbonate liquids, store food, and accelerate plant growth. Since, I always liked the thought of working with Dry Ice I had begun to think of an experiment to do for the IA involving Dry Ice. After much consideration I choose to test how soda and water would

This science fair project is important in ways that people should use to form certain things that could help people see that there is a better conservation of goods. This could help better the community by using different substances from housing areas then put them to use. The freezing point Is determined by how much of particles were broken down In the mixture. When its in freezing point the potential of that solution will be equal in both states. Also this project would solve certain issues people may have with freezing water in different ways. This could help scientist figure out what and how the freezing point of water could help preserve the goods that we use in everyday life. In everyday life people freeze stuff but what if there was a way to freeze things without using just coolness but other tempatures. Also if people would consider using salt and sugar to tell if there is a difference I’m tempature it could spark a new way to do things in this economic system we have.

The first part of the lab began by one lab member adding 10.0 mL of DI water to a test tube while another lab member obtained a beaker full of ice and salt. After both these steps were complete the test tube was put in the beaker full of ice. Immediately following the test tube be being placed in the beaker, a temperature probe was inserted into the test tube. The initial temperature was recorded and after the temperature was recorded in 30 second increments. Once the water exhibited supercooling and then remained consistent at .1 °C for 3 readings it was determined that the water had froze and formed crystals. Evidence that crystals formed allowed for it to be confirmed that the water actually hit freezing point at .0

The experiment will start with two ice cubes. One will have nothing added to it, the other will have ½ tsp of salt sprinkled over it. Each will be separate on two different plates/containers. Time will be kept with a stopwatch, and notes will be taken throughout the experiment on the percentage of ice that has melted at certain points in time.

2) When water freezes there are additional hydrogens bonds formed between molecules and those molecules become slow.

When dry ice is mixed with hot water, it can produce quick bubbling water and a lot of fog. Dry ice produces fog because its cold temperature of -109.3deg F or -78.5deg C, when put in water, it produces a cloud of water vapor fog. When the water get lower than 50deg F. it stops producing fog. Dry ice will smoke longer on a damp day than a dry day.

will be placed on each ice cube needed for the experiment. • 1 bag of white sugar, 1 tsp. will be placed on each ice cube needed for the experiment. • 1 small saucer (plate) that will be where the ice cube is placed. • 1 spoon (teaspoon) to use to drop the materials onto the ice • Timer to measure the time on how much the ice has melted at a certain point.

Cotton is a good heat insulator. In our thermal insulating test, we put three hundred milliliters of room temperature water into a pan. Then we placed four containers into the pan, three containers had different fiber samples and one was empty. The empty container was a control to compare back to. After recording the original temperatures, we added the ice cubes. We took the temperature of the cotton container and continued to do so every minute for ten minutes. The

Ice has a crystal structure of frozen water molecules.(World Book, Devlin, pg 5, para. 7). Each molecule is made up of 2 hydrogen atoms and 1 oxygen atom. Each molecule is attached to 4 neighboring molecules by connections known as hydrogen bonds. ( World Book, Devlin, pg 5, para 7).An oxygen atom can be part of two hydrogen bonds, while any hydrogen atom can be part of any 1 hydrogen bond. ( World Book, Devlin, pg 5, para 7.Therefore, these molecules can form four bonds.

The first step needed to carry out the experiment, was to crush the dry ice into smaller pieces in order to fit into

The objective of this lab was to witness the change in temperature of cyclohexane with different substances added. There are certain techniques for a solid, liquid, and a gas to have a certain phase change (Hall, 15). There are also different ways for there to be a phase change when it involves a solid, liquid, or a gas. The process of phase change is usually being witnessed in the different weather changes we have. When snow begins to fall in the winter it falls as a liquid, starts to freeze from the atmosphere, then fully freezes when it is set on the ground from the winter temperature. It then begins to melt and turn back into a liquid as the temperature begins to heat up, then evaporates as the liquid starts to boil and steam up. (Phase Change, 17). In this experiment, we hypothesized that our trial three with 0.612 grams of benzoic acid would have the greatest effect on temperature change since it held the greatest amount of mass.

The results that were recorded on the line graph and the table shows that the starting temperature (0mins) of the ice was -2°C. During the first minute where the temperature rose from -2°C to 11°C was the biggest incline of the results. The temperature rose by 13°C.The temperature continued increasing until it reached 2 minutes where it stayed on 23°C for a minute. The temperature increased by the third minute, but it did not have as big as a incline during the first two minutes. The average temperature incline between the third and sixth minute was only by 3°C per minute as shown in the table, which was not as big as the 11°C incline. By this point, the ice (solid) had already melted into water (liquid). By the time the time reached