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Water PropertiesState the properties of waterRelate the properties of water to living organismsDescribe how hydrogen bonds form between water moleculesExplain how substances can be hydrophobic or hydrophilicExplain how water can be used as a coolantCompare thermal properties of water and methaneDescribe how substances are transported in blood
Water PropertiesState the properties of waterRelate the properties of water to living organismsDescribe how hydrogen bonds form between water moleculesExplain how substances can be hydrophobic or hydrophilicExplain how water can be used as a coolantCompare thermal properties of water and methaneDescribe how substances are transported in blood
Water properties
Below are the properties of water
Find out1. What they mean
2. How they benefit living organisms
CohesiveAdhesive
High specific heat capacityHigh latent heat of vaporisation
High boiling pointSolvent
Water PropertiesState the properties of waterRelate the properties of water to living organismsDescribe how hydrogen bonds form between water moleculesExplain how substances can be hydrophobic or hydrophilicExplain how water can be used as a coolantCompare thermal properties of water and methaneDescribe how substances are transported in blood
Covalent bonds between hydrogen and oxygen to make water
Unequal sharing of electrons
Hydrogen bonding
Oxygen has a partial negative chargeHydrogen has a partial positive charge
They form poles – one side positive, one negative
Hydrogen bonding
These weak forces charges hydrogen bondsOxygen and hydrogen is attracted together
Hydrogen bonding
Many of them are attracted together – the hydrogen bonding gives water it’s unique
properties
Hydrogen bonding
Water PropertiesState the properties of waterRelate the properties of water to living organismsDescribe how hydrogen bonds form between water moleculesExplain how substances can be hydrophobic or hydrophilicExplain how water can be used as a coolantCompare thermal properties of water and methaneDescribe how substances are transported in blood
Hydrophobic and hydrophilic
What does it mean?
Example
Hydrophobic
Hydrophilic
Water PropertiesState the properties of waterRelate the properties of water to living organismsDescribe how hydrogen bonds form between water moleculesExplain how substances can be hydrophobic or hydrophilicExplain how water can be used as a coolantCompare thermal properties of water and methaneDescribe how substances are transported in blood
Your tasks (Page 71-73)1. How does sweat cool you down?
2. Compare the thermal properties of water and methane- How are their properties similar and different?- Why?
3. How are the following transported in your blood (with regards to solubility in water)- Sodium chloride- Amino acids- Glucose- Oxygen- Fats- Cholesterol