Fluoride poisoning

Name: Mandisa Surname: Vilakazi Grade: 9L Teacher: Ms Mhlongo Science Investigation Question: Which soda water is the most harmful towards human teeth (for this investigation I will use egg shells because they have more or less everything in common with a human tooth)? Hypothesis: Coca Cola is the most harmful towards human teeth, and I say this because it contains more sugar than Coca Cola zero, Pepsi, Sprite and Distilled water, making it more harmful or corrosive to human teeth because this…

When one is asked the common question, “are you a dog person or a cat person,” it is assumed that there is only one option. Dogs are trustworthy, devoted, and carefree, while cats are independent, aloof, and sometimes even somber (especially to a “dog person”). To most, the two household pets are polar opposites despite serving the same purpose: being a source of comfort outside usual human interactions. In Oranges Are Not the Only Fruit, Jeanette’s family has a dog their entire life, which…

readers of the effect chemicals have on nature and how this would affect the future of the human race. “Chemicals sprayed on croplands or forest or gardens lie long in the soil, entering into living organisms, passing from one to another in a chain of poisoning and death” (Carson 613). This statement explains to the reader the effect of chemicals on all living beings. Rachel Carson’s essay also includes problem solution examples. This helps the reader understand the problem as well as fix the…

died shortly after in the hospital. Within three months of the explosion, thirty operators and firemen that were working on the plant were also killed (Chernobyl Accident 1986). After those three months, many more people died because of radiation poisoning and cancers that were developed. Acute Radiation Syndrome or radiation sickness affected one hundred and thirty four people and was the cause of death for twenty eight people (Chernobyl Accident 1986). How could something this drastic happen?…

Lipstick and Lead Poisoning Throughout history many unhealthy substances, including lead, have been used as ingredients during the various times in the history of makeup. Modern day cosmetics are more controlled, regulated and their ingredients and the potential side effects are more fully understood. However, recent research by the Campaign for Safe Cosmetics and the Food and Drug Administration (FDA) indicate that there are approximately 400+ best-selling lipsticks on the market today that…

Walking into a normal household most people will notice a cat sleeping or a dog loudly barking . Pets are an essential part of a family, but what if just a cat or a dog is not enough. What if a family didn't want to be mainstream, what if they wanted something else? Over the last few years there has been a growing trend of owning exotic pets. These animals can be smarter, more colorful and interesting or they could be outright expensive and dangerous. So the question arises, should an exotic…

There are only a few things in this world that are always constant: The Earth is round, water is wet, fire is hot, and there will be a timeless debate of cats Vs dogs.But ultimately decided to go for a cat, then this article is for you. Taking care of a kitty can be intimidating, indeed! This is even more so if it’s a newborn. In the beginning, most of them are completely unlike dogs; they may act selfish and distant, and generally feel like they only look out for #1. But, as a cat owner…

The severity of Mercury exposure is linked to the dose that is being exposed, the age of the individual, the length and the route of the exposure (“Mercury and health” 2016). The mother who is previously exposed to a high level of Mercury can pass it on and affect the fetus during pregnancy causing impairments to the development of their brain and nervous system (“Mercury and health” 2016). It was reported that the fetus is five to ten times more sensitive to the toxicity of Mercury than the…

How to care for your cats We all love cats! They come in various shapes and sizes and have different kinds of temperament. Why are cats so loveable? It’s their actions! Cats can be super lazy, energetic, affectionate, and playful. You can’t help but love the handsome face of cats. Here are our ten best cat facts! While every cat has an individual uniqueness, the study of cat behavior and their biology can provide valuable insights that will give you a better understanding of your cat. 1. Cats…

In the wee hours of the morning, what pet would most American’s rather have jump on the bed to disturb their peaceful sleeping? A dog or a cat? Of course, a dog is man’s best friend and is the most preferred pet of choice in America according to most recent polls. But how could anyone not love a dog? They are fun loving, come in all shapes, sizes, and love to please their owners. Not to mention certain dogs can be trained to be in K9 units and hunting partners. This does not automatically…