Water Cycle Partb

Only 3% of Earth’s water is considered to be fresh water. Of that, only 0.3% of fresh water is surface water, which includes lakes, swamps, and rivers. These surface water resources are distributed as follows:

• 87% of all surface water is found in lakes

• 11% of all surface water is found in swamps

• 2% of all surface water is found in rivers

Which bar graph shows the approximate distribution of each surface water resource on Earth?

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Tags

NGSS.MS-ESS2-4

Water is moved between these sources in a continuous cycle, which is called the water cycle. Sunlight and weather play important roles in the cycle. Water is cycled between the atmosphere, Earth's surface and soil, and its plants and animals. Not all water is usable in the form you see in the graph. Freshwater resources can be used for drinking and bathing, while saltwater cannot. This is where the old saying “Water, water everywhere, but not a drop to drink!” comes from.

Which of the following graphs communicates the specific location of drinkable water resources by percentage? Use figure 1 to guide your choice.

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Tags

NGSS.MS-ESS2-4

A group of students built a model of the water cycle for a school project. They filled a plastic container with soil and rocks, molded a small hill out of clay, and placed a bowl of water at the foot of the hill to simulate a lake. They then placed the model on a table near a window to provide solar energy. Using a watering can, they made it "rain" on their model, then recorded their observations. They created a data table, which is shown below.

The students took the model to school and showed their teacher the model and their observations. The teacher asked the students to incorporate another element into the model that would illustrate a liquid-to-gas phase change. What should the students place in the model to show this phase change?

• A) a cooling fan

  
  

• B) a small stream

  
  

• C) a live plant

• D) an ice cube

  
  

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Read the passage and answer the following question(s).

Modeling the Water Cycle

Jacie made a model to show the water cycle. The model she made is shown below.

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Tags

NGSS.MS-ESS2-4

Read the passage and answer the following question(s).

Modeling the Water Cycle

Emma is building a model to show the processes that occur during the water cycle. The beginning of the model is shown below.

• A) evaporation → condensation →  precipitation

  
  

• B) condensation → crystallization → transpiration

  
  

• C) precipitation → condensation → evaporation

• D) transpiration → condensation → crystallization

  
  

Tags

NGSS.MS-ESS2-4

A student makes a poster of the water cycle for a presentation for his class, as shown. The four major systems of Earth are represented by numbers, and the various processes of the water cycle are labeled in his model.

Sam planned an investigation to determine the conditions that lead to the cycling of water. What factor that drives the cycling of water must be included in Sam's investigation?

• A) plants and trees in the biosphere

  
  

• B) the surface features of Earth

  
  

• C) water in the hydrosphere

  
  

• D) the energy from the Sun

  
  

Tags

NGSS.MS-ESS2-4

Why is the ice melting in picture Y, but not picture X?

• A) The clouds are heating the water and turning it into ice.

  
  

• B) The clouds are heating the ice and turning it into water.

  
  

• C) The Sun's energy is heating the ice and turning it into water.

  
  

• D) The Sun's energy is heating the water and turning it into ice.

  
  

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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Which of the following is the cup in the picture NOT modeling?

• A) clouds

  
  

• B) rainfall

  
  

• C) the heat produced by the Sun

  
  

• D) condensation caused by cooled water

  
  

Tags

NGSS.MS-ESS2-4