WATER AND CARBON CYCLE - Properties of Water

Question 1

What are the three states of water?

Answer 1

Solid, liquid and gas.

Question 2

Sublimation

Answer 2

Process of a solid turning to gas.

Question 3

Deposition

Answer 3

Process of a gas turning to a solid.

Question 4

Melting

Answer 4

Process of a solid turning into a liquid.

Question 5

Freezing

Answer 5

Process of a liquid turning into a solid.

Question 6

Evaporation

Answer 6

Process of a liquid turning into a gas.

Question 7

Condensation

Answer 7

Process of a gas turning into a liquid.

Question 8

Fusion

Answer 8

When a solid becomes a liquid.

Question 9

Vaporisation

Answer 9

When a liquid becomes a gas.

Question 10

What bond does water have?

Answer 10

Strong hydrogen bonds.

Question 11

What is the result of strong hydrogen bonds of water?

Answer 11

Water has a high surface tension. It can hold itself together as a drop rather than spreading out as a film. Animals use property to move along surfaces eg. Pond skater. Water can be taken up plant stem.

Question 12

Due to strong hydrogen bond of water what is required for phase change?

Answer 12

Lots of energy.

Question 13

Latent Heat - evaporation

Answer 13

Water molecules heated by sun become agitated and try to break bonds between them. Not enough heat in sun to do this. So water molecules absorb energy from surroundings to give them final energy needed to break bonds. Energy is latent heat. As latent heat taken from surroundings it cools surroundings down.

Question 14

Latent Heat - condensation

Answer 14

During condensation, latent heat is released by water molecules as they slow down and join together. This adds heat to surroundings so is a warming process.