18 SCIENCE AND KITCHEN. CIENCIA Y COCIN. CIÈNCIA I CUINA. Bubbles burbujas, bombolles

!±8± 18 SCIENCE AND KITCHEN. CIENCIA Y COCIN. CIÈNCIA I CUINA. Bubbles burbujas, bombolles

ENGLISH Variant of clips 16 and 17. A glass of glass (left) is wetted bettar than a glass of plastic material. (right). Yhe sparkling water generates less and smaller bubbles upon the glass surface. ESPAÑOL Variante de los clips 16 y 17. Un vaso de vidrio (izquierda) se moja mejor que uno de plástico. Por ello el agua con gas genera en su superficie menos burbujas, y más pequeñas, que se desprenden facilmente. CATALÀ Variant dels clips 16 i 17. Un vas de vidre (esquerra) i un de plàstic (dreta) es mullen diferent. El de vidre es mulla millor, i l'aigua amb gas genera poques bombolles a la seva superfície, i les que es formen són més petites. El vas de plàstic es mulla pitjor, i això permet generar bombolles de carbònic molt més grans i que tarden més a desprendre's.

18 SCIENCE AND KITCHEN. CIENCIA Y COCIN. CIÈNCIA I CUINA. Bubbles burbujas, bombolles

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Biology 1B - Lesson 13: Water Relations

!±8± Biology 1B - Lesson 13: Water Relations

General Biology

Biology 1B - Lesson 13: Water Relations

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Coal Seam Gas - The Fight For Our Lives - Spread Virally

!±8± Coal Seam Gas - The Fight For Our Lives - Spread Virally

IF this video keeps freezing up on you, try this one: www.youtube.com Coal seam gas mining (CSG) is developing rapidly in New South Wales and Queensland and is commencing in other states. The legal and administrative protections are inadequate to ensure that public health is not harmed and that environmental damage does not leave a legacy for generations. The public health responsibilities of state and federal governments are to prevent harm by careful scientific assessment of possible hazards, their risks and methods of prevention. Therefore they deal particularly with clean air, clean water and uncontaminated food. Industry and state governments have frequently reassured the public that there are no dangers from CSG to water supplies and to their health. But what is their evidence? Overseas health concerns are emerging. A ban on shale gas mining in France and moratoriums in parts of the USA and South Africa are recent developments. The United States Environmental Protection Authority has begun a comprehensive study to investigate the potential adverse impacts that hydraulic fracturing may have on water quality and public health. There are differences between shale gas mining -- the predominant process overseas, particularly in the US -- and coal seam gas mining in Australia, in the depth of drilling and the volume of water brought to the surface, but there are health impacts common to both: the potential for contamination of water for drinking and agricultural use and ...

Coal Seam Gas - The Fight For Our Lives - Spread Virally

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