One of the oldest questions in history is why and how fast do things fall to the Earth? This was not far from Henry Cavendish’s goal. In 1798 Cavendish sought to find the density of the Earth which in turn can be used to calculate the weight of the world. His experiment however required him to calculate an undefined variable in Newton’s law of universal gravitation known as G or the gravitational constant. Cavendish through his experiment discovered that the Earth’s gravitational constant was 9.8
Premium
Experiment 3: Stochastic Events • Consider the same population of butterflies is in the path of a hurricane. All survive‚ but 10 are blown to a new location. These 10 start a new population; their progeny will reflect the founder’s gene pool. This is known as the founder effect. Materials Beaker #1 Beaker #2 Beaker #3 Questions 1. What observations can you make regarding the gene pool and gene frequency of the founding individuals? 2. Do these results vary between the populations founded by
Free Natural selection Evolution Sickle-cell disease
OCEAN FOOD CHAIN ich are not relevant to a general audience: “From the time I was small‚ I have been very active in defending our environment‚” “From the first time I saw environmental protestors‚ I realized that they were all crazy.” Note that some of these topics could be converted into theses that would be arguable to a general audience if they were de-personalized and established as arguable issues. Also keep in mind that personal examples may play a significant supporting role in your
Premium Academia Thesis or dissertation Doctor of Philosophy
water‚ it will affect the swimming speed of the paramecium. The various students groups have individual experiment of how dose NaCl affect swimming speed of Paramecium‚ but the experiment did not show the result clearly to students. Therefore‚ after they finish the presentation‚ most of the students want to find out the chemical NaCl increases swim speed of Paramecium. Experiment Design The experiment prediction is if we add 4mL of Paramecium to 25mL of 0.2M NaCl and 225mL of Dryl’s solution‚ then Paramecium
Premium Oxide Acid Base
QUESTION 2.1: Do you expect heat to flow into or out of the cup into the surrounding atmosphere? ANSWER: The heat flow is expected to flow out of the cup into the surrounding because temperature of the cup is more than its surroundings. QUESTION 2.2: Is the difference between the final and initial temperatures‚ T_f − 푇푖‚ positive or negative? Explain why you gave the answer you did. ANSWER: The difference between the final and initial temperatures is negative. This is due to the fact that gas
Premium Temperature Thermodynamics Heat
06.06 Lab Questions Where is Herculaneum located? What happened to the city? Herculaneum is near Pompeii. The city was buried and frozen in time due to eruption of Mount Vesuvius. Why is Herculaneum important to archeology today? Herculaneum is important to archeology today because it is the easiest and most accurate society that archeologists have developed. What are some of the challenges that archeologists face when examining the city of Herculaneum? Some of the challenges that archeologists
Premium Archaeology Pompeii Anthropology
case osmosis will cause more water to move out of the cell than will move in the cell and the cell will shrink. In this case‚ we say that the solution is “hypertonic”. Learn more about osmosis and diffusion from Chapter 3 of your textbook. CELERY EXPERIMENT We can place celery in three different water solutions to observe the effects of osmosis on the celery stalks. Salt will serve as our solute to
Premium Osmosis Solution
Experiment 1: Error‚ Uncertainties and Measurements Laboratory Report Jan Luke Mendoza‚ Alexis Vienne Munar‚ Paula Murakami‚ Giorla Joanne Negre Department of Math and Physics College of Science‚ University of Santo Tomas Espana‚ Manila Abstract Throughout the experiment the main goal is to find out about the realities in taking measurements‚ that is‚ that there will always be an uncertainty for each acquired value. And to find out and recognize these uncertainties was handled in the
Premium Measurement
The purpose of my experiment is to determine which temperature will allow Luminol to glow at its greatest capacity. My hypothesis is that the glow will illuminate for the longest time in a cold temperature because it will take longer to dissolve. I also predict that in the warmer temperature‚ the glow will be at it’s brightest. Luminol is a chemical‚ which exhibits chemiluminescence with a blue glow. It is a solid that is soluble in most polar solvents‚ but insoluble in water. Luminol is widely
Premium Oxygen Hydrogen Chemical reaction
Mazarei Food Microbiology April 22‚ 2011 Purpose: To test the pH level of many common household object by use of the juice from a red cabbage. Background: pH is the measure of the acidity or basicity of a solution. The pH scale ranges from 1 to 14 with 1 through 6 being acidic and 8 through 14 being basic; 7 is considered neutral. The use of the red cabbage‚ or red cabbage juice is because red cabbage can be used as an acid/base indicator. The pH level of foods is important to food microbiology
Premium Bacteria Acid Water