Lab Report Lava Flow

Maria’s hypothesis for this experiment is that the cold water will freeze faster, she thinks this is correct because the hot water molecules move faster than the cold water molecules, causing the hot water to take longer to freeze.

If the temperature in the apparatus increases too quickly, it’s difficult to record to exact temperature at which the first drop of liquid falls and then again when the mixture is completely liquid. This would result in the wrong melting point range being recorded. Additionally, experiment three heavily relied on the results from experiment two. Failing to extract all the aspirin from the organic solution in experiment two would result in more impurities in the unknown component. Thus, lowering and broadening the melting point

Anpother factor that can have an impact on the level of hazard posed by a volcano is the type of plate margin on which it occurs. Volcanoes occuring at constructive plate boundaries are usually much less violent than those occuring at destructive plate boundaries. This is because the magma produced by plates moving apart is Basic, and therefoe has a low viscosity, allowing it to flow easily. The lava is produced from a central vent or fissure and erupts regularly but not usually violently. Also,constructive plate boundaries are often found under the sea and create submarine volcanoes, such as along the Mid-Atalntic ridge, so pose few threats to humans. As a result, the hazards posed by volcanoes at constructive plat eboundaries is relatively low. However, the subduction of one plate under another at destrctive plat eboundaries can form an acidic magma chamber, due to the build up of intense heat. Acidic magma is very viscous and resisitant to flow, meaning that there is often a huge build up of pressure, which can result in very violent and dangerous eruptions involving ash and pyroclastic flow. This can pose a a serious hazard. Pyroclastic flowsa are extremely dense, containing toxic gases at very high temperatures, and can move at speeds over 100km/h. The consequences of such an unpredictable hazard can be extremely seruous

The location of the volcano is also important. If it is situated on a constructive plate boundary then it is generally less explosive, and therefore poses different threats to volcanoes situated on a destructive plate boundary. The volcano may also be situated on a hotspot like in Hawaii, where the eruptions aren’t very explosive. Volcanos which aren’t explosive can pose other threats to lava flows though, such as dangerous gases being released. Like in Lake Nyos, Cameroon where 1700 people died.

However, the results are completely different. The results shown in the table, the water and cornstarch solution is most suitable liquid to use in the snow globes due to its thick viscosity compared to other solutions. Hence, the marble traveled slower as it created more drag onto the marble. Nevertheless, the water itself had low viscosity compared to other solutions because the marble reached the base faster of the measuring cylinder. As a result, it created less drag onto the marble compared to water and cornstarch solution. Therefore, the thicker the solution, the longer it takes for the marble to reach the base of the measuring cylinder. However, if the solution has low viscosity (such as water itself), the faster it the time it takes for the marble to reach the

When the temperature of the air is increased, it starts to rise. This happens because the hotter the air is, the less dense it becomes. The viscosity in air increases with the temperature; this is equal to the square root of the temperature. The viscosity increases because the molecules collide more frequently. Because of this, the molecules move around randomly, due to the increased number of collisions.

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

Higher temperatures cause atoms to spread out and decrease in density, so magma at higher temperature is less viscous and will flow more easily

• Thirdly, we tried to maintain the temperature by keeping the test tubes in a regulated room. If the temperature were to increase it would cause the kinetic energy of the sucrose solution increase and if the temperature were to decrease it would cause the kinetic energy of the sucrose solution to decrease.

Purpose: The purpose of this laboratory was to gain an understanding of the differences between the freezing points of pure solvent to that of a solvent in a solution with a nonvolatile solute, and to compare the two.

Temperature affects lava flow by increasing or decreasing the viscosity, therefore affecting the speed at which the lava flows. In the graph presented, the visual data clearly shows that as the temperature of the syrup rises, the velocity increases. The overall average velocity for all the groups who used cold syrup was 1.34 cm/s. The overall average velocity for the groups who used room temperature syrup was 4.43 cm/s, and the overall average velocity for the hot syrup groups was 6.82 cm/s. This is because, like most liquids, syrup (and lava) has molecules inside that move around more freely when the liquid is in a form where the temperature is hotter. On the other hand, a colder temperature may make molecules move less, and the decrease in

In this research project the question that was answered was “What makes ice melt faster?” The products used were salt, sugar, and sand. This research includes the many types of chemicals salt, sugar, and sand have. This research also includes the questions to provide more information about the research question. This question has been asked many times to see what is going to melt ice faster.

This happens because the room temperature syrup has more energy, causing the molecules to spread apart. For the team hot average, the average was 7.15 cm/second. The range of data for averages was 1.7 cm/second to 15.79 cm/second. There are clearly some big differences between the former and the latter. This happened because they are outliers. That data may have been messed up because the syrup was taken off of the crockpot too early, cooling down the syrup making it have more viscosity and a smaller velocity. Another way that these trials could have been messed up is if someone threw the syrup at the plate when they were pouring it, and the speed of the pouring caused a very high velocity. The hot syrup flowed faster than room and cold syrup because it had a lower viscosity. The hot syrup had a lower viscosity because it had the highest energy out of the three temperatures, causing the molecules to be more spread out. Gas, water, and silica also have an effect on the viscosity of lava. Water makes the viscosity of the lava lower because it thins out the lava. Gas makes the pressure increase in high viscosity magmas, while when the gas escapes the viscosity

The soda ash form experiment 3 was obtained. A 250 ml beaker was obtained and rinsed.

The ratio between the two, under a certain amount of stress and under a certain temperature is the viscosity or coefficient of viscosity. Viscosity is the thickness of a liquid or how much the liquid resists to pouring. Only three states of matter fall under Newton’s law of Viscosity, solids, liquids, and gases. All other states of matter are defined as Non-Newtonian matters, and are therefore excluded from the law of Viscosity. A Non-Newtonian matter