Acid & Base Prezi by Nuria

Water Treatments

*Water sanitation:

Clean water, basic toilets and good hygiene practices are essential for the survival and development of children. Children’s lives are at risk without these basic needs. Every day, hundreds of children die because of the poor water quality and the shortage of sanitation and hygiene.

*Water treatments:  

Is the process that makes the water more acceptable for a specific use. This water treatments removes contaminants components and can reduce their concen

• Coagulation and Flocculation: are the first steps in a water treatment. Chemicals with a positive charge are added to the water; these chemicals neutralizes the negative charge of dissolved particles in the water. After that, the particles grab with the chemicals and together form larger particles (floc).
• Sedimentation: in this process the floc remains to the bottom of the water supply, because of its weight.
• Filtration: when the floc has fallen to the bottom of the recipe, the clear water on top will pass through the filters and pore sizes to remove dust, parasites and other dissolved particles.
• Disinfection: After the process of filtration the water has been filtered and a disinfectant is added to remove any kind of parasites, bacteria… that were not remove in the previously process. The disinfectant is used to protect the water from virus.
• Sludge Drying: solids that are collected from the water are removed to drying lagoons.
• PH Corrector: a piece of lime is added to the filtered water to adjust the PH and consolidate the naturally soft water to minimise corrosion in the distribution system.

*Potable water:

It comes from a lot of systems like public water, private wells, bottles… It must be safe and healthy check it is too easy, you can put a water filter, do an inspection to comprobate septic tank isn’t  too near to any private well.  Is very important know where drinking water comes from, how it’s been treated, and if it's safe to drink.

Fishing an ice cube

Fishing an ice cube

We have made and activity with water, a glass, an ice cube, sodium bicarbonate and thread.

First, we put the ice in the water, then we add some sodium bicarbonate and we put a piece of thread on it. If you do all the things well when you pull the thread up ice cube will be fixed in it.

https://drive.google.com/file/d/0B5WZHDC5pZ-zbk9RUWgxekRYVnM/view?usp=sharing

Water footprint

Water footprint

Water footprint measures the amount of water used to produce our own water.

• Green (Black) water footprint is water from precipitation, evaporated, incorporated by plants. It is relevant for agricultural, horticultural and forestry products.

• Blue (Yellow) water footprint is water from surface or groundwater resources. A product to take water from one body and returned to another. This kind of water is used in domestic water.

• Grey (Blue) water footprint is water of assimilate pollutants to measure the water quality standards. It appears from the soil, impervious surfaces or other sources.

Here you can see that we use 2605m3 in food, 491m3 in domestic and 468m3 in thing related with industry. Our amount of water in one week  is equal to 3564m3. It is our mean and here (http://waterfootprint.org/en/resources/interactive-tools/personal-water-footprint-calculator/personal-calculator-extended/) 
is where you can measure your own quantity of water that you spend.

Water Culture and Art

Water Lilies - Monet

This picture is Water Lilies by Claude Monet. Claude painted it during 1889 because painters wanted to express perspective with their paintings. It is an impressionist oil painting.

In the painting you can find the flower garden (in Giverny) of Monet.

Plants, reflections in water of willows and water only interested the artist. Water lilies are actually compositions based on colored spots. Here water is so important because it is associated with nature and how it needs water to survive.

We have chosen this painting because Claude Monet's paintings are so flashy and you can find lots of different details on them, just as water is so interesting because of all the implications it has got in our lives.

Hello,

We are team alpha. We are five participants and our "names" are: LordStark, Chanel,  Katherine, Cali and Pintureca. We are starting to create a science blog called Open to Science World.

We want to promote science in teenagers and we would like to do it with a little bit of humour.

We hope you like it!!!☺☺☺