Science 4 Water Cycle Final Test
This is your final test on what you have learned about the water cycle. Please do your best. If an answer requires you to write, please write lots of details so you can show what you know!
Questions and Answers
- 1.
List 5 places that hold water as it passes through the water cycle.
- 2.
How might water from the ocean end up in a field in Utah?
- 3.
If Great Salt Lake disappeared how would the water cycle in the area be affected? Describe two ways it would change the water cycle.
- 4.
How does the sun affect water on Earth?
- 5.
Tell us the BEST thing you learned from our water cycle unit.
- 6.
Which would be the most helpful to farmers?
- A.
Rainfall that evaporates quickly
- B.
Rainfall that runs off the land quickly
- C.
Rainfall that soaks into the soil slowly
- D.
Very little rainfall
Correct Answer
C. Rainfall that soaks into the soil slowlyExplanation
Rainfall that soaks into the soil slowly would be the most helpful to farmers. This is because slow infiltration allows water to penetrate deep into the soil, reaching the plant roots and replenishing groundwater reserves. It helps in maintaining soil moisture levels, which is crucial for crop growth and development. Slowly soaked soil also reduces the risk of runoff and erosion, preventing nutrient loss and soil degradation. Overall, this type of rainfall promotes better water availability for crops, leading to improved agricultural productivity.Rate this question:
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- 7.
On a warm sunny day a student noticed a cold can of pop had water droplets running down the sides. The student wrote about this in her science journal. Which of the following would be the best topic sentence for the student&rsquos journal?
- A.
Water vapor condenses when it is cooled.
- B.
Water vapor evaporates when it is cooled.
- C.
Water vapor condenses when it is heated.
- D.
Water vapor conjugates when it is cooled.
Correct Answer
A. Water vapor condenses when it is cooled.Explanation
The best topic sentence for the student's journal would be "Water vapor condenses when it is cooled." This sentence accurately reflects the observation made by the student, as they noticed water droplets forming on the cold can of pop. This indicates that the water vapor in the air had condensed when it came into contact with the colder surface of the can.Rate this question:
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- 8.
Use this model of the water cycle to answer the question. Where is water condensing?
- A.
From A to B
- B.
From B to C
- C.
From C to D
- D.
From D to A
Correct Answer
D. From D to AExplanation
Water is condensing from D to A. In the water cycle model, condensation occurs when water vapor cools and transforms into liquid water. In this case, water is condensing as it moves from the atmosphere (D) to the Earth's surface (A). As the water vapor cools, it forms tiny droplets that collect to form clouds or precipitation, such as rain or snow. Therefore, the correct answer is from D to A.Rate this question:
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- 9.
How does water vapor in the air return to Earth?
- A.
It evaporates and is blown by the wind.
- B.
It evaporates and forms clouds.
- C.
It condenses then precipitates as rain.
- D.
It sticks to any surface it comes into contact with.
Correct Answer
C. It condenses then precipitates as rain.Explanation
Water vapor in the air returns to Earth through the process of condensation and precipitation. When water vapor cools down, it condenses into tiny water droplets, forming clouds. As these droplets continue to grow, they eventually become heavy enough to fall back to the Earth's surface as precipitation, such as rain, snow, or hail. Therefore, the water vapor does not simply evaporate and is blown by the wind or stick to surfaces, but rather it undergoes condensation and precipitation to return to the Earth.Rate this question:
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- 10.
Many Utah towns use water from wells for drinking. How does water get into wells?
- A.
It has to be poured into them from water tanks
- B.
Rain sinks down through the soil into them
- C.
It is pumped by large engines
- D.
It is evaporated from the interior of the Earth
Correct Answer
B. Rain sinks down through the soil into themExplanation
Wells are typically a source of groundwater, which is replenished by rainwater seeping into the ground. As rain falls, it percolates through the soil, gradually making its way down and filling the underground reservoirs called aquifers. These aquifers act as natural storage spaces for water, and wells are drilled into them to access this water for drinking purposes. Therefore, the correct answer is that rain sinks down through the soil into wells.Rate this question:
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- 11.
Predict what might happen to a river when heavy rains soak the soil near it. The river will
- A.
Rise
- B.
Freeze
- C.
Sink
- D.
Not change
Correct Answer
A. RiseExplanation
When heavy rains soak the soil near a river, the excess water will flow into the river, causing it to rise. The additional water from the rain will increase the volume and depth of the river, leading to a rise in its water level. This is a common phenomenon during periods of heavy rainfall, as the river acts as a natural drainage system for the surrounding area. Therefore, the correct answer is "rise."Rate this question:
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- 12.
Which of the following is an example of condensation occurring in the water cycle?
- A.
Water flowing down a river
- B.
Underground water soaked into rocks
- C.
Ocean water changed into water vapor
- D.
Clouds or dew forming
Correct Answer
D. Clouds or dew formingExplanation
Clouds or dew forming is an example of condensation occurring in the water cycle. Condensation is the process in which water vapor in the air cools and changes back into liquid water. When warm air rises and cools, it can no longer hold all the moisture it contains, causing the water vapor to condense into tiny water droplets or ice crystals, forming clouds or dew. This is an essential part of the water cycle, as it leads to the formation of precipitation and the redistribution of water on Earth.Rate this question:
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- 13.
Where is most water found on Earth?
- A.
Glaciers
- B.
Lakes
- C.
Rivers
- D.
Oceans
Correct Answer
D. OceansExplanation
Oceans contain the largest amount of water on Earth. They cover about 71% of the planet's surface and hold approximately 97% of the Earth's water. This vast amount of water is in the form of saltwater, which is not suitable for drinking or irrigation. Oceans play a crucial role in regulating the Earth's climate and weather patterns, as well as supporting a diverse range of marine life.Rate this question:
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- 14.
What controls whether water is a gas liquid or solid ice?
- A.
What cup it is in
- B.
How long it has been in a place
- C.
If it is being used for anything
- D.
What temperature it is
Correct Answer
D. What temperature it isExplanation
The state of water (gas, liquid, or solid ice) is determined by its temperature. At higher temperatures, water exists as a gas, while at lower temperatures, it becomes a solid (ice). The temperature at which water changes its state is known as its melting point (0 degrees Celsius) and boiling point (100 degrees Celsius at sea level). Therefore, the temperature is the controlling factor for the phase of water.Rate this question:
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- 15.
On what kind of day would you expect the most evaporation from the surface of a pond?
- A.
Cold, rainy
- B.
Cold, sunny
- C.
Warm, sunny
- D.
Warm, rainy
Correct Answer
C. Warm, sunnyExplanation
On a warm, sunny day, the temperature is high and the sunlight is abundant. This combination creates ideal conditions for evaporation to occur. The warmth increases the kinetic energy of water molecules, causing them to move faster and escape from the surface of the pond as water vapor. The sunlight provides the necessary energy to drive the evaporation process. Therefore, on a warm, sunny day, one would expect the most evaporation from the surface of a pond.Rate this question:
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- 16.
You are drinking the same water that dinosaurs drank thousands of years ago.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The explanation for the correct answer "True" is that the water on Earth is constantly recycled through the water cycle. This means that the water we have today is the same water that has been on Earth for billions of years. It has been evaporated from oceans, lakes, and rivers, then condensed into clouds, and finally fallen back to Earth as precipitation. This process has been happening for thousands of years, so it is highly likely that the water we drink today is the same water that dinosaurs drank millions of years ago.Rate this question:
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- 17.
We can create more water once we run out.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement suggests that we can create more water once we run out. However, this is not true as water is a finite resource on Earth. While the water cycle allows for the recycling and redistribution of water, it does not create more water. Therefore, the correct answer is false.Rate this question:
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- 18.
Use this model of the water cycle to answer the question. Where is precipitation occurring?
- A.
From D to A
- B.
From C to D
- C.
From B to C
- D.
From A to B
Correct Answer
D. From A to BExplanation
The correct answer is from A to B. In the water cycle model, precipitation occurs when water vapor condenses in the atmosphere and falls to the Earth's surface as rain, snow, sleet, or hail. In this model, water evaporates from the surface (A), rises into the atmosphere, and then condenses into clouds (B). Eventually, the condensed water droplets become heavy enough to fall back to the surface as precipitation. Therefore, precipitation is occurring from A to B in this water cycle model.Rate this question:
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- 19.
Use the chart to answer question 1. What happened to the water at 100˚C?
- A.
The water began to turn to a liquid.
- B.
The water began to condense.
- C.
The water began to turn from a liquid to a gas.
- D.
The water became a solid.
Correct Answer
C. The water began to turn from a liquid to a gas.Explanation
At 100˚C, water reaches its boiling point. This means that the water molecules gain enough energy to break the intermolecular bonds and transition from a liquid state to a gaseous state, forming water vapor. Therefore, the correct answer is "The water began to turn from a liquid to a gas."Rate this question:
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Mar 21, 2023Quiz Edited by
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Oct 15, 2013Quiz Created by
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