1. Element from the periodic table
CHLORINE
Element from the periodic table

2. Thing I will teach you about in this presentation…
Interesting facts about chlorine
What it was used for in the past
What we use it for now
What happens when chlorine enters the human body
And finally why I chose chlorine as my element for this project

3. Interesting facts about chlorine
If you have ever had a prescription medicine, driven a car, or drank out of a tap you have most likely been exposed to chlorine.
On the periodic table chlorine is in the halogen group and it’s the 2nd lightest halogen gas after fluorine.
Free chlorine on earth is very rare. Chlorine combines with almost all elements to create chlorine compounds called chlorides.
Chlorine is the 3rd most abundant element in Earth's oceans (about 1.9% of the mass of seawater is chloride ions) and the 21st most common chemical element in the Earth's crust.

4. What was chlorine used for in the past?
Chlorine gas was used as a weapon in ww1.
It was used to injure, kill and demoralize people
The types of weapons ranged from tear gas and the severe mustard gas, to lethal agents like phosgene.
The use of chlorine gas increased a lot in the ww1

5. CHLORINE GAS

6. What do we use chlorine for now?
Chlorine is commonly used as an antiseptic
it is used to make drinking water safe
Chlorine is used to treat swimming pools
Large amounts of chlorine are used…
in many industrial processes, such as…
in the production of paper products
plastics, dyes, textiles, medicines, antiseptics, insecticides, solvents and paints.

7. What happens when chlorine enters the human body?
When chlorine enters the body as a result of breathing, swallowing, or skin contact, it reacts with water to produce acids. The acids are corrosive and damage cells in the body.
Do you sneeze a lot when coming out of the swimming pool??
Well that’s because of the chlorine. Sneezing, coughing, soreness of the throat, skin and eye irritation are all things that occurred when your body is being exposed to chlorine.

8. Why did I choose chlorine as my element for this project?
I chose chlorine because we use it everyday and I wanted to learn more about why we do.
It’s one of those elements you hear about all the time but really don’t look into it.
Thank you for watching my presentation hope you enjoyed.
-Haley

9. SOURCES