Cold Air Mass Lab Report

Snow globes are made of clear glass, a transparent sphere with a scenic view and a plastic toy inside the globe. The globe must be shaken to actuate the snow so the white particles can fall gradually to reach the base. When the marble (object used for this experiment) falls, it experiences two external forces which are; the gravitational force and the aerodynamic (fluid resistance) drag of the marble, which affects the rate of the marble. As the marble is falling, the speed is increased due to the gravitational force, which is pulling the marble downwards to the base of the beaker until it reaches the terminal velocity, where both external forces are equal. However, there are factors that can affect the marble’s terminal velocity, such as

Is this reaction endothermic or exothermic? What does that mean and how do you know? (~3 sentences)

In this experiment the scientists are looking for how gas production is effected when different sized Alka-Seltzer tablets are put into water. The independent variable is the different sizes while the dependent variable is the amount of gas produced. A constant variable includes the same brand of Alka-Seltzer tablets, the volume of water and same starting temperature. Finally the scientist’s control variable is the first trial testing the whole tablet comparing its reaction time to each new piece.

As stated in the last paragraph air pressure is made up of air molecules. But wind is made up almost completely different. Wind is the flow of air or other gases that make up the atmosphere. Wind is so strong that it can cause to make differrent landscapes or cause a tornado also known as a cycone. There are global winds, such as the wind belts which are between the atmospheric circulation cells. There winds which typically include certain type of cells in the air that are called jet streams. Gusts are short-lived increases in the strength of the

Experiment 2 “Density” was about how to measure the mass and volume and determine the density of water, alcohol, and a solid. For this lab, we begin by calculating the mass of empty graduated cylinder and the mass of 25 mL of tap water. After taking the mass of water and cylinder, we record it on “Density of Water: Data Table”. Since we did not have enough time of complete the whole lab, so we skipped the procedure to measure the density of alcohol. We jumped to the next procedure, which was density of a solid. For that we used a copper and it density 8.95. For this lab, my partner and I did not make any mistakes or errors. But, for better improvement I think we should have more time to complete the whole lab. I felt like we was rushing through

The main objective of this experiment is to differentiate between a physical change and a chemical change.

It is not only the weather that the air masses bring that affects the climate of the UK, but also, the complex interactions between the air masses. Most importantly, the interactions between the Polar Maritime and Tropical maritime air masses can lead to the formation of areas of significantly low pressure called depressions. These depressions usually form in the Atlantic Ocean at the boundary between PM and TM air, and bring characteristic cloudy, wet and windy conditions. These depressions are what are responsible for many of the winter storms. They are regular occurrences and so contribute to the overall pattern of weather over a long period i.e. the climate of the British Isles. The interaction between continental air masses often leads to anticyclones which are the opposite of depressions – areas of significantly high pressure. They bring settled weather, with clear skies and light winds. In the summer they can be responsible for temperatures of over 30⁰C. Many say it is the pattern of depressions and anticyclones passing over Britain that is responsible for its

The aim of the experiment will be to investigate how varying water temperatures influence the time of a chemical reaction, in this case being, a combination of Sodium Thiosulfate and Hydrochloric Acid.

A tornado is a very complex and complicated type of outdoor vacuum. The various types of tornadoes are caused when a great size of particles become part of cloud and start releasing heat rapidly which makes it rise and create a vacuum underneath it. The air that quickly goes into the vacuum creates the center of the tornado or the tornadoes vortex. Then when the air temperature changes it causes a sudden drop in the air pressure. When the heat is being released in the vacuum it causes precipitation. The rain released is equal to the amount of heat absorbed.

Introduction: The theory behind this experiment is the heat of a reaction (∆E) plus the work (W) done by a reaction is equal to

In Measuring and Understanding Density, several experiments were performed to find density of regularly shaped objects, irregularly shaped objects, liquids and gasses. An additional experiment was done to find the specific gravity of a sampling of liquids. The purpose of the experiment was to provide a better understanding of density and to be able to extrapolate unknowns based upon these calculations. The experiments yielded data in keeping with Kinetic-molecular theory in regards to the density of water versus its temperature. Key measurements and formulae were also used to determine densities of metal and plastic objects as well as irregularly shaped rocks. It is possible to find the density of an object (be it liquid, gas or

So the warm moist air creates clouds of rain and thunderstorm. Adding to that winds with different speed going in different directions assisting in expanding these great clouds of rain and thunderstorm. With

Warm air rises and cool air sinks, or subsides. If the Earth had no continents and did not turn, then the circulation of the atmosphere would appear much like this.

The process begins when the sun starts to heats up the surface which creates warm air. The warm, less heavy air rises and converges with the cold less heavy air above. This process is known as wind shears. Wind shears are when two

In this experiment, we investigate the change in temperature caused by adding a chemical substance into the water and dissolving it. The results recorded in the table below show that our hypothesis is correct.