Water Year 7 Assessment

Which of these is an example of a process in the water cycle?

• river

• cloud

• condensation

• soil

Answer explanation

Condensation is a key process in the water cycle where water vapor cools and changes into liquid droplets, forming clouds. This distinguishes it from the other options, which are stores.

Which of these is an example of a store in the water cycle?

• river

• evaporation

• precipitation

• throughflow

Answer explanation

A river is a store in the water cycle as it holds water, while evaporation and precipitation are processes that move water. Throughflow refers to the movement of water through soil, not a storage form.

Which term refers to the movement of water from the surface into soil?

• evaporation

• condensation

• infiltration

• run-off

Answer explanation

The term 'infiltration' refers to the process of water moving from the surface into the soil. This is distinct from evaporation (water turning into vapor), condensation (vapor turning into liquid), and run-off (water flowing over the surface).

Which term refers to the change of state from a liquid to a gas?

• evaporation

• condensation

• precipitation

• water vapour

Answer explanation

The term 'evaporation' refers to the process where a liquid changes into a gas. This occurs when molecules at the surface of the liquid gain enough energy to break free and enter the gas phase.

Which term refers to the change of state from a gas to a liquid?

• evaporation

• condensation

• precipitation

• water vapour

Answer explanation

The term that refers to the change of state from a gas to a liquid is condensation. This process occurs when gas molecules lose energy and transition into a liquid form, unlike evaporation, which is the opposite.

Where is most of the world's water stored?

• oceans

• ice caps

• atmosphere

• soil

Answer explanation

Most of the world's water is stored in oceans, which contain about 97% of all water on Earth. Ice caps hold a significant amount as well, but oceans are the largest reservoir.

Which of these is the best definition of a system?

• a group of interrelated parts that work together

• all the inputs and outputs of a process

• a group of parts that include stores and processes

• a group of parts that include inputs and outputs

The water cycle is a model'. Which of these is NOT evidence for this statement?

• it’s a complicated system and has lots of parts

• it doesn't usually show all the routes that water can take

• it is not a real system

• it is shown as a simplified diagram

Why is the water cycle a closed system?

• it has no processes

• it has no stores

• it has no inputs

• it has no options

Answer explanation

The water cycle is a closed system because it has no inputs or outputs; all water is recycled through processes like evaporation and precipitation. This means the total amount of water remains constant, with no external addition.

What is the relationship between latitude and precipitation?

• generally, as latitude increases the precipitation decreases

• generally, as latitude increases the precipitation increases

• there is no relationship between latitude and precipitation

Answer explanation

Generally, as latitude increases, the amount of precipitation decreases. This is due to the fact that higher latitudes are often associated with colder climates, which can lead to less moisture in the atmosphere.