a. Water boils to produce steam at 100 C (212 F) b. Water produces gas with sodium metal c. Water and oil separate when combined d. Water dissolves sugar 22. In the experiment, students put brine shrimp in water with different concentration of salt and counted the number. Which of the following changes to the experiment will increase confidence in the validity of the result? a. Count the number of dead brine shrimp instead of living brine shrimp b. Add more brine shrimp to the water with the highest salt concentration c.
1. Places farther away from the equator (higher latitudes) receive less sunlight than places closer to the equator. The sun 's energy is spread over a large area in places far from the equator, and it 's energy is concentrated on a small area in places at the equator. Therefore, places closer to the equator have a warmer climate, while places farther away from the equator have colder climates. 2.
Introduction Aluminum is a significant good in modern society due to its many uses in commercial goods. Because aluminum is consumed so rapidly, it becomes somewhat expensive to extract it from its original source. In recent years, there has been a push toward the recycling of aluminum through electrolytic reactions resulting in significant decreases in cost and aluminum production. Materials and Methods Using a scoopula 1.2141 grams of aluminum can pieces were weighted on an analytical balance and placed inside a 250mL beaker. On end of a rubber cord was then connected to the aspirator (located on the lab table) while the other end was connected to a funnel, functioning as a fume hood.
The energy is reflected off the surface and leaves the atmosphere. An increase in the amount of ice covering the Earth’s surface decreases the Earth’s temperature. If this ice melts, the Earth’s temperature could increase..
Title: THE BALLOON INFLATION REACTION Introduction: Chemistry is one thing that makes us understand and gives us reasons of why certain reactions gives certain results. In this experiment we will be illustrating the reaction between baking powder and vinegar and see what happens to the balloon that is attached to it. Hypothetically the reaction of the vinegar and baking powder will produce carbon dioxide which will inflate the balloon. If the more vinegar may happen that when more vinegar is added to the baking powder it may produce more carbon dioxide thus the balloons diameter increases.
B. I also really did not have a specific audience because I
Hot Air Balloon Analysis In the duration of this project there were many factors that needed to be kept into consideration. The most important was the laws of gas, because the hot air balloon needed to be be constructed enough to withstand the air and have enough room for the hot air particles to move making the balloon have a successful flight. Due to the hot air particles move as a faster rate making then collide to each other which causes the balloon to have enough energy to take flight. While actually launching the ballon I began to see the balloon that did take flight and those who did not.
B. Thesis: The causes of global warming and climate change are because of increased emissions of greenhouse gases, and the effects of this are rising temperatures and more severe natural disasters. II. Body A. Counter Claim: Most scientist and people believe that humans are the cause of global warming because of the emissions that they put into the air, but there is a small percentage of people who think that global warming is not caused by emissions at all. Support with MLA citation
In this experiment, the principle of conservation of energy was used and the first equation was as follows: ∑∆Q = 0. Similarly, ∆Q = mLf. Therefore, ∆Qc + ∆Qw + ∆Q ice + ∆Qi →(l) + ∆Q m ice
Global warming and climate change is one of the greatest issues faced globally. It is the change in temperature and the results it has on the World. As compared to a few decades ago, the global average temperature and the accumulation of carbon dioxide in the atmosphere has increased drastically at a very quick pace, faster than anytime in history. To help keep the temperature of the Earth constant, our atmosphere is covered with a layer of green house gases.
There are two main causes of climate change: natural causes and human causes. Natural causes that influence climate change include volcanic eruptions, ocean current, earth orbital changes, and solar variations. Those natural causes contribute small part of climate change; however, the biggest part in climate change is caused by human. The spectacular increase of human population, contribute significantly to the climate change. There are more than 7 billion people live in the world now, compared to about 3 billion people in late 1960s.
Statement of Problem I. What are the causes of global warming? II. How is it affecting our environment? III. How can we minimize the activities responsible for global warming?
Dr. Abullatif Messikh Spring 2014/2015 Air Pollution, Types, Causes and Solution By: Halit Koprulu U00046755 Table of Contents Abstract 4 Introduction 4 Exposure and Indoor Air Quality 5 Causes of Air Pollution 6 Effects of Air Pollution 6 Particular Matter 7 Particular Matter Effects 8 Ozone 8 Ozone Effects 9 Solutins 10 Conclusions 11 References and bibliography 12 X x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
So What Causes It? Global warming occurs when greenhouse gases, such as carbon dioxide, nitrous oxide, and methane trap heat inside the earth 's atmosphere. Think about what happens when you open your car door after the windows have been rolled up on a hot day.
a. For example: by studying for a test, there is a higher probability that the grade received on that test will be higher than if no studying had been done at
