Water (Leaving Cert Home Economics): Flashcards
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13 cards from this deck
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Practise the cards
13 cards from this deck
Chemical composition of water
Chemical composition of water
H₂O - two hydrogen atoms, one oxygen atom
Water as a solvent
Water as a solvent
Nature's most effective solvent, dissolves many substances
Water's heat capacity
Water's heat capacity
Absorbs/releases large amounts of heat before temp changes significantly
Water's density when frozen
Water's density when frozen
Becomes less dense; ice floats on liquid water
Water's molecular forces
Water's molecular forces
Cohesive (stick together) & adhesive (stick to others)
Water's transport role
Water's transport role
Carries nutrients, oxygen, enzymes & hormones through body
Water's waste removal role
Water's waste removal role
Removes waste via kidney filtration & urinary function
Water's temp regulation method
Water's temp regulation method
Perspiration and breathing
Water in digestion
Water in digestion
Participates in hydrolysis to break down nutrients
Daily water intake for adults
Daily water intake for adults
2-3 litres daily
Why ice floats
Why ice floats
Water becomes less dense when frozen
Force enabling capillary action
Force enabling capillary action
Cohesive & adhesive forces between water molecules
Water's solvent uses in food
Water's solvent uses in food
Extracts flavours/nutrients, enables chemical reactions