7.2.3 The Water Cycle

• What is the water cycle defined as?

  Continuous movement of water
• What is precipitation in the water cycle?

  Water returning to Earth
• Arrange the following processes in the order they occur in the water cycle.

  1️⃣ Evaporation/Transpiration

  2️⃣ Condensation

  3️⃣ Precipitation

  4️⃣ Runoff/Infiltration
• Transpiration is the release of water vapor from plant leaves
• Transpiration releases water vapor from plant roots.

  False
• Evaporation is the conversion of liquid water into water vapor
• Match the water cycle process with an example.

  Evaporation ↔️ Lakes drying up in the summer

  Condensation ↔️ Dew forming on grass overnight

  Precipitation ↔️ Rain, snow, hail
• Heat energy causes water molecules to move faster and break free from liquid bonds
• Water vapor condenses due to lower temperatures at higher altitudes.


  True
• Evaporation is the process where liquid water turns into vapor
• Transpiration is the release of water vapor from plant leaves.


  True
• Match the water cycle process with its definition.

  Evaporation ↔️ Conversion of liquid water into vapor

  Condensation ↔️ Formation of clouds from water vapor

  Precipitation ↔️ Water returning to Earth
• What is runoff in the water cycle?

  Surface water flowing across land
• What causes water to evaporate in the water cycle?

  Heat energy
• Where does evaporation typically occur in the water cycle?

  Surface of water bodies
• What happens to water vapor during condensation?

  Forms liquid water
• Rain is formed when water vapor condenses into liquid water droplets
• What is the definition of evaporation in the water cycle?

  Liquid water to water vapor
• Transpiration is the release of water vapor from plant leaves.


  True
• What is precipitation in the water cycle?

  Water falling from atmosphere
• What are condensation nuclei in the condensation process?

  Dust or pollen particles
• Through what structures do plants release water vapor during transpiration?

  Stomata
• What factors influence groundwater flow?

  Soil permeability and rainfall intensity
• Match the feature with the correct water cycle process:

  Surface water flow ↔️ Runoff

  Water seeping into ground ↔️ Infiltration
• What is the water cycle defined as?

  Continuous movement of water
• Condensation is the process where water vapor in the atmosphere cools and forms liquid water droplets
• What is the primary energy source driving the water cycle?

  Heat energy
• Evaporation is the conversion of liquid water into water vapor
• What does infiltration replenish?

  Groundwater supplies
• Evaporation typically occurs at the surface of water bodies such as lakes, rivers, and oceans
• What happens to water vapor when air cools during condensation?

  It forms liquid droplets
• Warm, moist air cooling and rising forms clouds through condensation.

  True
• Snow is formed when water vapor in cold clouds undergoes crystallization
• What are the tiny pores on plant leaves called that facilitate gas exchange?

  Stomata
• On a hot day, a large tree can transpire gallons of water
• What dissolved substances are carried by water released through transpiration?

  Minerals and nutrients
• Groundwater flow is slower compared to surface runoff.


  True
• Vegetation cover slows runoff and increases infiltration.


  True
• The water cycle moderates climate by regulating temperature and humidity.


  True
• What causes precipitation in the water cycle?

  Water vapor becomes too heavy