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Science Essays

4,476 Science Free Papers: 1,921 - 1,950

  • Healthy Forest Initiative: Is It Really Healthy?

    Healthy Forest Initiative: Is It Really Healthy?

    As people of the twenty-first century, we are all too familiar with the frequent occurrence of wildfires in our nation's forests. Each year millions of acres of woodlands are destroyed in brutal scorches. It has been estimated that 190 million acres of rangelands in the United States are highly susceptible

    Essay Length: 1,524 Words / 7 Pages
  • Heart


    Bum bum, bum bum, that is the sound of your heart. Your heart is located to the left of your chest. Its purpose is to get blood to your entire body. The heart is a muscle, which many people don't know. Your heart is about the size of your

    Essay Length: 405 Words / 2 Pages
  • Heart and Breathing Rate M/f Before and After Exercise

    Heart and Breathing Rate M/f Before and After Exercise

    Science: Abstract: This investigation is to show the raspatory and circulatory systems in deeper meaning. It also explains the reasons for why breathing and heart rate becomes higher during physical activity, and if there are any differences between female and males. This experiment shows the biological principles, and how to

    Essay Length: 1,276 Words / 6 Pages
  • Heart Attack

    Heart Attack

    A heart attack affects thousands of people each year leading to almost half a million deaths a year, in the US, and this does not even include the ones who make it a survive. It is a chronic illness that happens because the arteries, which are the vessels that supply

    Essay Length: 949 Words / 4 Pages
  • Heart Disease Prevention

    Heart Disease Prevention

    Exercise is the one of the best - and most enjoyable - ways of lowering the chances of developing heart disease. Regular exercise helps the heart to become stronger, so it can pump more blood around the body with less effort. Smoking avoidance not only reduces the risk of developing

    Essay Length: 787 Words / 4 Pages
  • Heart Disease Symptoms

    Heart Disease Symptoms

    Heart Disease Symptoms What is your heart telling you? Heart problems can take you by surprise. Suddenly, you are hunched over with chest pressure, pain or even a heart attack. These are frightening symptoms of coronary artery disease (sometimes called atherosclerosis or hardening of the arteries). This disease means that

    Essay Length: 626 Words / 3 Pages
  • Heart Diseases

    Heart Diseases

    -A- Aneurysm-This term refers to a localized dilation of an artery or chamber of the heart. The behavior and prognosis for aneurysms varies, depending on their size and location. Aneurysms of the heart are usually the result of a prior heart attack. They generally don't require surgical resection. They may

    Essay Length: 9,848 Words / 40 Pages
  • Heart Failure

    Heart Failure

    Heart Failure Heart failure occurs when the heart is not pumping as well as it should be, and thus cannot deliver blood to the rest of the body. A human body is dependent on the heart in order to deliver oxygen and nutrient-rich blood to the body's cells. If the

    Essay Length: 1,756 Words / 8 Pages
  • Heart Lab

    Heart Lab

    Lab Partners: Rose, Christa Hypotheses: 1. Null Hypothesis: Male heart rates will equal female heart rates after climbing the stairs at UWMC. 2. Alternative Hypothesis 1: Male heart rates will be more than females after climbing the stairs at UWMC from the bottom to top. 3. Alternative Hypothesis 2:

    Essay Length: 427 Words / 2 Pages
  • Heart Rate Before and After Exercise

    Heart Rate Before and After Exercise

    Introduction: Heart Rate is defined as the amount of times a person's heart beats in one minute. A resting heart rate is the person's heart rate prior to any activity or exercise. As activity increases, the heart rate will increase in speed. An increased heart rate is essential as it

    Essay Length: 442 Words / 2 Pages
  • Heart Transplant

    Heart Transplant

    Heart Transplant What is a heart transplant? A heart transplant is surgery that removes a diseased heart and replaces it with a healthy heart from someone who is deceased, and is also a donor, to improve someone’s quality of life and increase their lifespan. Heart transplants give many people the

    Essay Length: 667 Words / 3 Pages
  • Heartbeats


    Heart rate is the term used to describe the frequency of the cardiac cycle. It is usually calculated as the number of contractions of the heart in one minute. Heart rate is usually measured in "beats per minute" (bpm). The heart rate can increase as a response to a

    Essay Length: 908 Words / 4 Pages
  • Heat Capacity Lab

    Heat Capacity Lab

    Specific Heat Capacity Lab Sample Material Mass of Sample (kg) Initial Temperature of hot Water. (oC) Initial Temperature of cool water (oC) Final Temperature of sample/ water (oC) п‚Ñžt of Water (oC) Specific heat Capacity of Sample (J/kg oC) Mass of Cold Water Brass 68.2Ð'± 0.5 Ð'±0.0005 =0.0682 kg 97.5

    Essay Length: 881 Words / 4 Pages
  • Heat of Combustion Experiment

    Heat of Combustion Experiment

    Alkanols Heat of Combustion Aim: To determine the molar heat of combustion of methanol, ethanol and 1-propanol Materials: * 3 spirit burners, one containing methanol, one containing ethanol and one containing 1-propanol. * A thermometer * A copper calorimeter * 100 ml measuring cylinder * Retort stand and clamps *

    Essay Length: 664 Words / 3 Pages
  • Heat of Neutralization, Heat of Solution of Two Salts, and Specifc Heat of a Metal Using a Coffee-Cup Calorimeter

    Heat of Neutralization, Heat of Solution of Two Salts, and Specifc Heat of a Metal Using a Coffee-Cup Calorimeter

    Heat of Neutralization, Heat of Solution of Two Salts, and Specifc Heat of a Metal Using a Coffee-Cup Calorimeter Connor Dobbins Lab Partners: Luke Ely, Erin Grah, Holton Gwaltney Purpose: To make a simple calorimeter from two Styrofoam coffee cups and study the heat transferred between three different processes in

    Essay Length: 1,118 Words / 5 Pages
  • Helena Carter

    Helena Carter

    Born May 26, 1966, in London, England. The great-granddaughter of British Prime Minister Herbert Henry Asquith, Bonham Carter enjoyed a privileged childhood.During her teenage years, she modeled for Yardley products and appeared in a number of television commercials, making her acting debut in the British TV movie A Pattern

    Essay Length: 424 Words / 2 Pages
  • Hemophilia


    Hemophilia is a genetic bleeding disorder. People who have hemophilia have a deficiency or an absence of a coagulation protein. A blood clotting factor is deficient or absent. Bleeding is most often into joints, such as the knee, elbow, or ankle, but bleeding can occur anywhere in the body.

    Essay Length: 2,160 Words / 9 Pages
  • Hemophilia


    Hemophilia is the oldest known hereditary bleeding disorder. There are two types of hemophilia, A and B (Christmas Disease). Low levels or complete absence of a blood protein essential for clotting causes both. Patients with hemophilia A lack the blood clotting protein, factor VIII, and those with hemophilia B lack

    Essay Length: 2,657 Words / 11 Pages
  • Hemophilia


    According to the dictionary Hemophilia is a hereditary disorder in which the blood fails to clot normally, causing prolonged bleeding from even minor injuries. This is only the very basis of this disorder. First of all there are two kinds of Hemophilia. Hemophilia A and Hemophilia B. Hemophilia A is

    Essay Length: 873 Words / 4 Pages
  • Hepatitis B

    Hepatitis B

    Hepatitis B Hepatitis B can be prevented with a highly effective vaccine, but this year ten to thirty million people will become infected with the hepatitis B virus. I feel that because this disease is preventable, only knowledge can help reduce the number of people infected. Hepatitis B is a

    Essay Length: 428 Words / 2 Pages
  • Hepatitis C

    Hepatitis C

    Hepatitis C has been referred to as a "Silent Epidemic," since it usually progresses slowly over many years. Most people who are infected with hepatitis C are not aware of any noticeable symptoms for as long as one to two decades after they are infected. In fact, by the time

    Essay Length: 1,013 Words / 5 Pages
  • Hepatitis C : The Silent Epidemic

    Hepatitis C : The Silent Epidemic

    Hepatitis C : The Silent Epidemic Introduction Did you know that over two hundred million people are infected with the Hepatitis C Virus (HCV)? Unfortunately it is true, and twenty five thousand more are infected each year. Out of these victims, three are acquaintances of mine. They are why I

    Essay Length: 1,660 Words / 7 Pages
  • Hepititis


    Hepatitis In modern society when a person gets sick with the flu or a cold they will usually go about their normal routine with the exception of a sneeze or a cough throughout the day. Sometimes things can be more than what they appear to be. The symptoms start out

    Essay Length: 1,663 Words / 7 Pages
  • Hera


    Although, Hera is a loved goddess by many mortals and other gods and goddesses, if she found out her husband Zeus was sleeping with another woman, she would punish his lovers and their children until death. She was a very jealous wife and would do anything to protect marriage. Hera

    Essay Length: 595 Words / 3 Pages
  • Herbal Medicine

    Herbal Medicine

    Herbal medicine is the extraction of herbs or plants which have a medicinal value in treating illnesses and diseases (Brody 1). A herb is known as a plant that does not have a woody stem and usually dies back at the end of each growing season. It is also

    Essay Length: 1,319 Words / 6 Pages
  • Hereditary Methemoglobinemia

    Hereditary Methemoglobinemia

    Hereditary methemoglobinemia is most commonly referred to as "the blue people disease" or "met-h". It is believed that this disease started in Kentucky with the blue Fugates of troublesome creek. It was started about six generations ago with a man named Martin Fugate. He was a French orphan. Martin came

    Essay Length: 785 Words / 4 Pages
  • Hereditary Pancreatitis

    Hereditary Pancreatitis

    Hereditary Pancreatitis What is Hereditary Pancreatitis? What are symptoms of Hereditary Pancreatitis? What procedures are used to diagnosis Hereditary Pancreatitis? What are the causes of Hereditary Pancreatitis? What treatment options are available for Hereditary Pancreatitis? What is the prognosis of Hereditary Pancreatitis? About Hereditary Pancreatitis Hereditary Pancreatitis is a rare

    Essay Length: 544 Words / 3 Pages
  • Heredity Vs Environment

    Heredity Vs Environment

    The age old debate Nature vs. Nurture. Are we the way we are because of how we are raised or are the actions and choices we make in life already hard-wired into our DNA when we are born? It is hard to be able to choose just one answer and

    Essay Length: 574 Words / 3 Pages
  • Heroin


    Heroin is a drug of extremes. For many people it is the most feared drug, while for others its powerful “high” offers the most dramatic way of escaping the cares and boredom of everyday life. It is the drug that immediately springs to mind when people talk about dependence and

    Essay Length: 403 Words / 2 Pages
  • Het Klimaat

    Het Klimaat

    Jack Hall is een klimatoloog die tijdens een lezing zijn bezorgdheid uitspreekt over een dreigende verandering van klimaat. Hij doelt hiermee niet op een geleidelijke verandering, maar een zeer drastische. In de geschiedenis is zo'n wijziging ййn keer eerder voorgekomen en dat had toen een ijstijd tot gevolg. Er is

    Essay Length: 286 Words / 2 Pages
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