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