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Flashcards: A River`s Tale 42 Flashcards 
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What is the starting point of a river called? |
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The starting point of a river is called the source.  |
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Rivers discharge their water into ___, ___, or ___ large bodies of water. |
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Seas, oceans, or large lakes |
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True or False: The Nile River is known as the shortest river in the world. |
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False. The Nile River is known as the longest river in the world.  |
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Fill in the blank: Rivers usually begin as small ___ that join together. |
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Streams |
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Riddle: I am colorless but can appear bluish from a distance, what am I? |
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A river |
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What is the term for the place where a river meets the sea or ocean? |
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The river's mouth. |
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Multiple Choice: Which of the following is NOT typically true about rivers? A) They start from a source B) They can be colorless C) They never end in a body of water D) They can join to form larger rivers |
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C) They never end in a body of water. |
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What happens to rivers when they reach their mouth? |
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They discharge their water into seas, oceans, or large lakes. |
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What is water pollution? |
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Water pollution occurs when harmful substances contaminate water sources, making it unsuitable for drinking, cooking, swimming, and cleaning.  |
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True or False: Industrial waste has no effect on water bodies. |
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False. Industrial waste can release chemicals and pollutants into water bodies, leading to pollution. |
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Washing utensils without proper disposal can lead to water pollution because ___ can contaminate water sources. |
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Soapy water |
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Riddle: I flow through rivers and lakes, but when contaminated, I can cause many aches. What am I? |
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Water |
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What are two activities that can introduce harmful substances into water sources? |
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Bathing animals and discharging untreated wastewater. |
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Fill in the blank: Cleaning household items with chemicals can pollute water bodies if the wastewater is not properly ___. |
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Managed |
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Multiple Choice: Which of the following is NOT a cause of water pollution? A) Washing utensils B) Industrial waste C) Clean water runoff D) Cleaning utensils |
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C) Clean water runoff |
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Fill in the blanks: Soluble substances can ___ in water, while insoluble substances cannot ___ in water. |
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Dissolve, dissolve |
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Riddle: I can dissolve in water, but I am not visible. What am I? |
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Sugar or salt  |
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What observation can be made when combining oil and water in an experiment? |
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Oil does not dissolve in water; it forms a separate layer.  |
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Fill in the blank: If substances like stones or plastic could dissolve in water, it could lead to ___ consequences for the environment. |
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Harmful |
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Why is it important to clean water before drinking it? |
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To remove harmful substances that could be dissolved in the water. |
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Multiple Choice: Which of the following is an example of an insoluble substance? A) Sugar B) Salt C) Sand D) Lemon Juice |
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C) Sand  |
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 Completed! Keep practicing to master all of them. |
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