Vanda Parádi Vanda Parádi and and

Ágnes Melhardt Ágnes Melhardt Jurisich Miklós GimnáziumJurisich Miklós Gimnázium

10.D10.Dbilingual classbilingual class

To drink or not to To drink or not to drink?drink?

- that is the - that is the question.question.

But what to drink?But what to drink?

Coke?Coke? Coffee?

Wine?

Brandy?

Water?

CaCOCaCO33+H+H22O+COO+CO22Ca(HCOCa(HCO33))22

Limestone

rocksAcidic rain water Causes hard

water

MgCOMgCO33+H+H22O+COO+CO22Mg(HCOMg(HCO33))

22

German hardnessGerman hardness

• 0 – 7 nk° 0 – 7 nk° very softvery soft

• 7 – 14 nk° 7 – 14 nk° softsoft

• 14 – 23 nk° 14 – 23 nk° mediummedium

• above 23 nk°above 23 nk° hardhard

AdvantagesAdvantages

• • Improves the taste Improves the taste of waterof water

•Calcium ions are good for Calcium ions are good for your bones and teethyour bones and teeth

•Good for brewing beerGood for brewing beer

DisadvantagesDisadvantages

•Wastes soapWastes soap

•Causes limescale in kettles and Causes limescale in kettles and water boilerswater boilers

•Causes hot water pipes to Causes hot water pipes to become blockedbecome blocked

Although it has some Although it has some disadvantages,disadvantages,

we should drink hard water, we should drink hard water, because it’s because it’s healthierhealthier than than

the soft.the soft.

RDARDA

2.5 litres a day

SymptomsSymptoms of too little of too little intake:intake:

•WeaknessWeakness

•Wrinkled skinWrinkled skin

•Irregular functioning of the Irregular functioning of the heart heart

Too much water:Too much water:

• Blood becomes more diluteBlood becomes more dilute

• Water moves into the cellsWater moves into the cells

• SwellingSwelling

Drink sufficient Drink sufficient amount, but not amount, but not too much hard too much hard

water!!!water!!!