What is the primary purpose of creating a small-scale model of the water cycle?

• To measure the exact amount of water evaporated.

• To observe the water cycle in a controlled environment.

• To determine the temperature of the atmosphere.

• To calculate the speed of water molecules.

How does temperature affect the rate of evaporation?

• Lower temperatures increase the rate of evaporation.

• Higher temperatures decrease the rate of evaporation.

• Temperature has no effect on evaporation.

• Higher temperatures increase the rate of evaporation.

What happens to water molecules during condensation?

• They slow down and come together.

• They change into gas permanently.

• They speed up and spread apart.

• They disappear completely.

In the water cycle model, what does the plastic wrap represent?

• The upper atmosphere.

• The ground level.

• The ocean surface.

• The sun's heat.

What is the purpose of using ice in the water cycle model?

• To heat the water.

• To add more water to the model.

• To represent the cold upper atmosphere.

• To freeze the water.

How can the water cycle model help in understanding large-scale natural processes?

• By measuring the speed of wind.

• By predicting weather patterns.

• By demonstrating the water cycle on a small scale.

• By showing the exact temperature of the ocean.

What is the main idea behind desalination?

• To remove salt from water by boiling it.

• To convert salt water into fresh water using evaporation and condensation.

• To freeze salt water to remove salt.

• To add salt to fresh water.

What happens to the salt in the desalination process?

• It dissolves completely.

• It turns into fresh water.

• It remains in the original container.

• It evaporates with the water.

Why is it important to understand the water cycle?

• To stop evaporation completely.

• To control the weather.

• To understand the movement of water on Earth.

• To predict the exact amount of rainfall.

What is the role of water molecules in the water cycle?

• They remain stationary.

• They only exist in liquid form.

• They are visible to the naked eye.

• They drive the processes of evaporation and condensation.