Which temperature (hot, cold, room temperature) caused the reaction to proceed the fastest? Why? How does this relate to the diffusion experiment? The hot water caused the Alka Seltzer to proceed the fastest because the higher heat sped up the chemical reaction. This experiment relates to the diffusion experiment because the higher temperature in both experiments produced the fastest results.…
He noticed the radiation in 1800 where if a thermometer was moved from one end of a prism. Then it created spectrum to the other. The highest temperature would file below red band, where no light was able to be seen. Due to the position, it forms infrared radiation. This type of radiation is would be called,” heat wave.”…
This experiment proved that as temperatures cooled the reaction time slowed down (http://www.ebi.ac.uk/interpro/potm/2004_9/Page1.htm). During the experience I initially put the thermometer on the bottom of the test tube which gave me the wrong temperature, so I had to redo the the test. Another error was during the reaction the liquid overflowed the sides of the test tube and it maid it hard to read the results. I would recommend that. Bibliography:…
Defining the Problem/Question Task 2 was to create a proposal to determine the quantitative characteristics that could control the light that is emitted from glow sticks. For task 3 the problem was to find one or more trends that could quantitatively control the amount of light emitted from the glow sticks. This investigation has value to companies or people that want to find a way to increase the brightness of glow sticks. Experimental Design and Procedure To control the amount of light emitted from the glow stick we decided to investigate with the variable, increasing alkalinity.…
Development of the steel industry was boosted by discovery of the Bessemer process. ("Second Industrial Revolution") Henry Bessemer and William Kelly drastically reduced the cost and time needed in producing steel from pig-iron. They found out that that blasting air through molten iron produced high quality steel. Steel was widely used in construction of buildings, because it provided good support for skyscrapers and tall towers.…
For this portion of the lab, relying on her knowledge of the visible light spectrum and color absorption, the scientist…
Galileo was an astronomer, physicist, and philosopher who played a big role in the scientific revolution of the seventeenth century. And also created an improved telescope to study the stars. One of his achievements was discovering four new “stars” orbiting Jupiter and the phases of Venus. In 1609 he built his first telescope improving the Dutch telescope, and made other observations about the moon’s surface other stars in the Milky Way. The four new moons were called Callisto, Europa, Ganymede, and Io.…
It was discovered by working with a cathode-ray tube in his laboratory where he discovered a fluorescent…
The impossibility reinforced the theory's indeterminacy. The experiment helped Bohr's case since it showed how Einstein’s experiment was a…
Throughout the course of the semester we have learned how different variables in an environment can affect the growth, change, and behavior of an organism. Using this research as a guide we set out to design an experiment that would show a particular variable’s effect on brine shrimp eggs. After much debate we decided to use light wavelengths as the variable being tested. We wanted to see the difference in development in the brine shrimp eggs and the development after hatching when exposed to different shades of light versus no light.…
The initial color was recorded. The “dark” set of tubes was covered with aluminum foil and set in darkness, and the “light” tubes set in a brightly lit area, each for 30-40 minutes. The observations were recorded at the end.…
The Scientific Revolution had many innovations. It happened during the middle Ages and some of the most famous scientists were alive during this time. The scientific revolution happened because people started doubting their old beliefs. This encouraged new ways of thinking and the development of new scientific instruments. During this time variables for math and the decimal system were introduced.…
Specific Purpose: My specific purpose for presenting this speech and persuading my audience is for me to show you the dark side of standardized testing and why it may hurt a lot of students rather than helping them. I will try my best to get my listeners to join my side on this argument. Thesis Statement: There are plenty of positive and negative aspects of standardized testing but to truly determine this argument you need to learn more about the history of standardized testing, how it impacts the students and how it impacts the school districts.…
GRAVITATIONAL WAVES, HOW CLOSE ARE WE? PHSCS 222 Collective Paper November 23, 1999 #123 #272 #666 #895 The Detection of Gravitational Waves, How Close Are We? Since the realization that the general theory of relativity predicts gravitational waves, there have been attempts to actually detect these waves. Indirect observations have been made that support their existence but no direct measurement.…
General relativity is fundamentally incompatible with quantum mechanics- they have been at odds with each other since its discovery in 1915- relativity breaks down at the subatomic level and vice versa. A conjecture by two physicists may finally reconcile relativity with quantum mechanics and put an end to the chain of inconsistencies began by Hawking’s information paradox. Albert Einstein first discussed the concept of quantum entanglement in a 1935 paper co-written with his colleagues Boris Podolsky and Nathan Rosen. In the form of a thought experiment known as the EPR paradox, they demonstrated the incompleteness of quantum mechanics.…