7.2.3 The Water Cycle

• Transpiration is the release of water vapor from plant leaves into the atmosphere.

  True
• Hail is a form of precipitation made of solid lumps of ice.


  True
• What is transpiration in the water cycle?

  Water vapor from plant leaves
• Sleet is a type of precipitation that is partially melted and then refrozen
• Frozen water crystals in clouds fall to the Earth's surface as snow
• The specific type of precipitation depends on atmospheric temperature and humidity.


  True
• What is the role of condensation in the water cycle?

  Water vapor turns into liquid
• Water changes from liquid to gas during the process of evaporation
• Surface runoff refers to water flowing over land into rivers and lakes.


  True
• Under what conditions does condensation occur in the atmosphere?

  Warm, moist air encounters cooler temperatures
• Condensation occurs when water vapor in the atmosphere cools and turns into liquid water or ice crystals
• What is infiltration in the water cycle?

  Entry of water into soil
• What is the process by which water changes from a liquid to a gas due to heat energy?

  Evaporation
• Match the water cycle process with its impact on ecosystems:

  Evaporation ↔️ Replenishes water sources

  Transpiration ↔️ Contributes to local humidity

  Condensation ↔️ Forms clouds and precipitation

  Precipitation ↔️ Primary water source for organisms

  Surface Runoff ↔️ Maintains aquatic habitats
• What is a major consequence of droughts on ecosystems?

  Water scarcity
• What is the water cycle defined as?

  Continuous movement of water
• Match the water cycle process with its description:

  Condensation ↔️ Water vapor turns into liquid droplets

  Precipitation ↔️ Water falls to Earth as rain or snow

  Surface Runoff ↔️ Water flows over land to oceans
• Arrange the main types of precipitation based on their state of matter:

  1️⃣ Rain (liquid)

  2️⃣ Sleet (partially frozen)

  3️⃣ Snow (frozen crystals)

  4️⃣ Hail (solid ice balls)
• Snow forms when water vapor in the atmosphere freezes directly into ice crystals.


  True
• What is the process called when water vapor in the atmosphere condenses into tiny water droplets or ice crystals to form clouds?

  Precipitation
• What is sleet made of?

  Partially melted and refrozen water
• What is the process called when water is released as water vapor from the leaves of plants?

  Transpiration
• Condensation completes the water cycle by returning water vapor to the Earth's surface.


  True
• Order the main processes of the water cycle:

  1️⃣ Evaporation

  2️⃣ Transpiration

  3️⃣ Condensation

  4️⃣ Precipitation

  5️⃣ Surface Runoff
• What source drives the evaporation process in the water cycle?

  Heat energy
• What is the primary difference between sleet and hail?

  Hail forms by freezing and thawing cycles
• Evaporation occurs from water bodies like oceans and lakes
• Steps in the process of condensation and precipitation

  1️⃣ Warm, moist air rises

  2️⃣ Water vapor cools and condenses

  3️⃣ Clouds form

  4️⃣ Water droplets become heavier

  5️⃣ Precipitation occurs
• Percolation is the downward movement of water through soil and rock layers
• Evaporation occurs from water bodies such as oceans, lakes, and rivers
• The water cycle influences the distribution of species and the productivity of ecosystems
• The water cycle ensures a steady supply of water for living organisms through processes like evaporation and precipitation.


  True
• In the water cycle, evaporation is the process of water changing from a liquid to a gas
• How does precipitation occur in the water cycle?

  Water vapor condenses and falls
• The specific type of precipitation that falls depends on the temperature and humidity conditions in the atmosphere
• What is the composition of rain?

  Liquid water droplets
• Rain is a form of precipitation consisting of liquid water droplets.


  True
• Match the precipitation type with its description:

  Rain ↔️ Liquid water droplets

  Snow ↔️ Frozen water crystals

  Hail ↔️ Balls of ice formed by freezing and thawing

  Sleet ↔️ Partially melted and refrozen water
• Water vapor released by plants during transpiration ultimately condenses and falls back to Earth as precipitation
• What is the water cycle?

  Water movement on Earth