With baseball being one of the most popular sports on the planet, many people are familiar with the different types of bats, which are wood and aluminum. Though many people argue the aluminum bat is better it rises the question, which is truly better, wood or aluminum? This papers will focus on the analysis of wood and aluminum bats.
If a lake is cut from the ocean and has no large fish as predators (only dragonflies), then the sticklebacks will have a better chance at surviving and reproducing because the sticklebacks will be better adapted to the environment (presence/absence of a pelvic bone) and have little to no predators. The hypothesis was supported.
The hypothesis for this project was “If a soccer ball has less regulation air pressure, then the distance the ball travels when kicked will be less.” It was therefore rejected. The soccer ball with less air traveled farther than the soccer ball with more air. The average distance of the soccer ball with less air traveled 29 yards, and the soccer ball wind or that I was tired.with more air traveled at an average distance of 19 yards. could’ve been caused by the It
Alka-Seltzer has been on the market since 1931 and has helped to relieve indigestion and upset stomach. The tablets began to fizz and bubble when dropped into water. “The fizziness happens when baking soda (sodium bicarbonate) and citric acid react chemically in water. They yield sodium citrate, water and carbon dioxide gas, which causes bubbles.” Based on this information, we will measure the reaction time of AlKa- Seltzer dissolved in 200 ml of water at 3 different tempertures in the first portion of this experiment. In the second portion of this experiment we will keep the temperature constant and divide the ½ tablet of Alka- Seltzer into 2 pieces ,3 pieces and an unbroken ½ tablet. It is my belief that Alka-Seltzer
In this experiment, the question that was asked was, are elephants afraid of mice? The hypothesis is if a mouse is placed near an elephant, then the elephant will be frightened. The experimenters traveled to an African safari to perform the experiment with their test subjects (an African elephant and a white mouse). They hid the mouse in elephant dung and rolled over the dung whenever elephants passed by. At first there was speculation that the elephants might have been startled by the moving dung. But, after retesting the experiment they realized that was not the case. Only the presence of the mouse seem to stop the elephant in their tracks. The independent variables in this experiment were the methods (such as the elephant dung, the string, the mouse) used as well as the breed of the elephant and mouse. The dependent
In modern society, guns are seen as a form of control. Those who have guns are able to overpower those who do not. This trend was set when guns were first invented and has stayed the same throughout history. The one place where guns are not a symbol of power and control is in literature, specifically “The Old Gun” and Hamilton. In Mo Yan’s short story “The Old Gun”, the protagonist is a hungry boy who does not even know how to use the titular firearm. Lin-Manuel Miranda’s musical Hamilton ends with the titular character dying from wounds sustained in a pistol duel. Both of these works feature characters that turn to using firearms when they have no other options. Although one could argue that guns are a symbol of control because the characters
The data observed and recorded in this lab shows that the concentration of miracle gro’ does affect the growth rate and germination speed of black eyed peas. The data is shown through two graphs and two data tables. The control group in this experiment is the seeds with a 0% concentration of miracle gro’, therefore the seeds with just water. The experimental groups are different concentrations of miracle gro’ including a 10%, 15%, 20%, 25%, and 30% concentration. The variable in this experiment is the amount/concentration of miracle gro’. On day one no seeds germinated. By day two, seeds in the control group, 15% and 25% experimental groups had germinated. On day two the experimental group with 25% concentration of miracle gro’ had the most seeds
October 2nd, 2002 was the start of a long and horrific three weeks in the Washington DC Metropolitan Area. People were terrified to be in the area and everyone was on edge. What appeared to be random killings, turned out to be a well-organized series of senseless shootings that took the lives of ten innocent people. After days of people being scared to death and much confusion, investigators discovered that there were two suspects in the shootings; John Allen Muhammad and his teenage partner Lee Boyd Malvo and they were in a blue 1990 Chevrolet Caprice sedan designed to terrorize people. This break in the case came when one of the suspects called the tip hotline and told them to look into a murder in Alabama, which lead to the case being
The purpose of the experiment was to understand how strong a bessbug by using weights and observing the time the best bug takes to travel to a certain distance.
Which of the following changes to the experiment will increase confidence in the validity of the result?
The purpose of this lab was to compare galvanizing and creating brass with pennies using weight change, mass change and observations. The independent variables are the types of pennies used. The dependent variables are the characteristics, change in pennies, and mass of the pennies. The constant variable is the amount of sodium hydroxide.
What influence does the height at which simulated blood is dropped have on the size of the blood spatter?
A number of different items were measured in this lab. For each of the following items, what did you find most challenging in making the measurement and how did that challenge affect the accuracy of the measurement?
Do you need a nail gun that delivers a lot of oomph for your next project? One of the most powerful nail guns on the market is the framing nail gun. It is a spcial type of nail gun that is best suited to nail on tough and thick surfaces. What the framing nailer lacks in precision, it makes up for heavy-duty work.
The purpose of this lab was to observe the phenomenon of resonance in an open ended cylindrical tube and use resonance to determine the velocity of sound in air at regular temperatures. A hypothesis for this lab was that if the frequency of the tuning fork increased, then the length of the tube to achieve resonance will increase because of the high amplitude of the vibration. The resonance of the open-closed tube was found through these steps. First, the tube was filled with water with an inner tube inside the outer tube. The water temperature was measured. The tuning fork was struck on the rubber stopper and was held above the water column. The tube’s length was adjusted until the volume of the sound increased and measured the length of