A1 Water & Nucleic Acids Flashcards
Cohesion
Force by which molecules of the same type attract and associate.
Adhesion
The force by which individual molecules stick to surrounding materials and surfaces.
Capillary Action
The tendency of a liquid to move up against gravity when confined within a narrow tube.
Surface Tension
Property of the surface of a liquid that allows it to resist an external force, due to the cohesion between water molecules.
Buyouncy
The ability of any fluid to provide a vertical upwards force on an object placed in or on it.
Thermal Conductivity
The measure of how easily heat flows through a specific type of material.
Viscosity
A measure of the fluids resistance to flow.
Black-throated loon
Buoyancy
Air:
Loons have large wings to generate lift in less buoyant air.
Viscosity
Water:
Loons are hydrodynamic to reduce drag against viscosity.
Air:
Loons are aerodynamic to reduce drag when flying.
Thermal Conductivity
Water:
Loons have oiled exterior feathers to exclude water.
Specific Heat Capacity
Air:
Loons are insulated by air trapped in down feathers.
Hydrophilic
attracted to water
Hydrophobic
repelled by water
Specific heat capacity
the amount of energy required to raise the temperature of 1 kg of a substance by 1 degree celsius.
Ringed seal
Buoyancy
Water: Seals have low density blubber to increase their buoyancy.
Viscosity
Water:
Seals have a streamlined shape to reduce drag against viscosity.
Thermal Conductivity
Water:
Seals have insulating blubber to reduce heat loss.
Specific Heat Capacity
Air:
Seals pups survive in lairs insulated by trapped air.
Origin of Water
