When sugar is stirred into water, it dissolves completely and the water remains clear. But when cooking oil is stirred into water, it separates and floats. This shows that water can dissolve some substances, like sugar and salt, while others, like oil and plastic, do not dissolve. This property of wRead more
When sugar is stirred into water, it dissolves completely and the water remains clear. But when cooking oil is stirred into water, it separates and floats. This shows that water can dissolve some substances, like sugar and salt, while others, like oil and plastic, do not dissolve. This property of water is important in understanding pollution and how different materials behave in water bodies.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
Items like plastic, paper, cans, food waste and chemicals are thrown into dustbins. If they enter rivers, plastic can trap fish and birds. Food waste rots and pollutes water, reducing oxygen for aquatic life. Chemicals from batteries or cleaners poison water and living beings. Even things like clothRead more
Items like plastic, paper, cans, food waste and chemicals are thrown into dustbins. If they enter rivers, plastic can trap fish and birds. Food waste rots and pollutes water, reducing oxygen for aquatic life. Chemicals from batteries or cleaners poison water and living beings. Even things like clothes or packaging cause harm. Proper waste disposal is crucial to keeping water safe for nature and people.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
Things like salt, sugar and some natural juices dissolve in water. Others, like oil, sand, plastic pieces and rubber, do not dissolve. These undissolved items can float, sink or pollute water bodies. Dissolved chemicals may remain hidden and harmful. This knowledge helps us understand how to treat pRead more
Things like salt, sugar and some natural juices dissolve in water. Others, like oil, sand, plastic pieces and rubber, do not dissolve. These undissolved items can float, sink or pollute water bodies. Dissolved chemicals may remain hidden and harmful. This knowledge helps us understand how to treat polluted water and protect animals and people who depend on clean water for survival.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
A healthy river has clear water and balanced aquatic life. When fertilizers from farms enter rivers, they cause plants and algae to grow rapidly, covering the surface in a green layer. This “green blanket” blocks sunlight, reduces oxygen and suffocates fish and aquatic life. It also makes the waterRead more
A healthy river has clear water and balanced aquatic life. When fertilizers from farms enter rivers, they cause plants and algae to grow rapidly, covering the surface in a green layer. This “green blanket” blocks sunlight, reduces oxygen and suffocates fish and aquatic life. It also makes the water unsafe for people. Controlling fertilizer use and runoff can help maintain river health.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
The term “green blanket” refers to the thick growth of water plants or algae covering a water body. This usually happens when fertilizers from farms enter rivers, causing fast plant growth. The blanket blocks sunlight, reduces oxygen and makes life hard for fish and underwater plants. It also makesRead more
The term “green blanket” refers to the thick growth of water plants or algae covering a water body. This usually happens when fertilizers from farms enter rivers, causing fast plant growth. The blanket blocks sunlight, reduces oxygen and makes life hard for fish and underwater plants. It also makes the water look dirty and unsafe. Managing farming practices can reduce such harmful growth.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
Take two clear glasses of water. Add a spoonful of sugar in one and a spoonful of cooking oil in the other. Stir both well and observe. What do you observe? Which one appears clear?
When sugar is stirred into water, it dissolves completely and the water remains clear. But when cooking oil is stirred into water, it separates and floats. This shows that water can dissolve some substances, like sugar and salt, while others, like oil and plastic, do not dissolve. This property of wRead more
When sugar is stirred into water, it dissolves completely and the water remains clear. But when cooking oil is stirred into water, it separates and floats. This shows that water can dissolve some substances, like sugar and salt, while others, like oil and plastic, do not dissolve. This property of water is important in understanding pollution and how different materials behave in water bodies.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-5/evs/
See lessMake a list of things that we throw into the waste bin at home or school. If these things were thrown into a river or a pond, how would each of these items harm the animals, plants and people who live nearby and use this water?
Items like plastic, paper, cans, food waste and chemicals are thrown into dustbins. If they enter rivers, plastic can trap fish and birds. Food waste rots and pollutes water, reducing oxygen for aquatic life. Chemicals from batteries or cleaners poison water and living beings. Even things like clothRead more
Items like plastic, paper, cans, food waste and chemicals are thrown into dustbins. If they enter rivers, plastic can trap fish and birds. Food waste rots and pollutes water, reducing oxygen for aquatic life. Chemicals from batteries or cleaners poison water and living beings. Even things like clothes or packaging cause harm. Proper waste disposal is crucial to keeping water safe for nature and people.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-5/evs/
See lessCould you write some things dissolve in water and some do not?
Things like salt, sugar and some natural juices dissolve in water. Others, like oil, sand, plastic pieces and rubber, do not dissolve. These undissolved items can float, sink or pollute water bodies. Dissolved chemicals may remain hidden and harmful. This knowledge helps us understand how to treat pRead more
Things like salt, sugar and some natural juices dissolve in water. Others, like oil, sand, plastic pieces and rubber, do not dissolve. These undissolved items can float, sink or pollute water bodies. Dissolved chemicals may remain hidden and harmful. This knowledge helps us understand how to treat polluted water and protect animals and people who depend on clean water for survival.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-5/evs/
See lessLook at the two images given below. Which river looks healthy and why? How do so many plants grow in water? in What do you think happens when too many plants grow a river?
A healthy river has clear water and balanced aquatic life. When fertilizers from farms enter rivers, they cause plants and algae to grow rapidly, covering the surface in a green layer. This “green blanket” blocks sunlight, reduces oxygen and suffocates fish and aquatic life. It also makes the waterRead more
A healthy river has clear water and balanced aquatic life. When fertilizers from farms enter rivers, they cause plants and algae to grow rapidly, covering the surface in a green layer. This “green blanket” blocks sunlight, reduces oxygen and suffocates fish and aquatic life. It also makes the water unsafe for people. Controlling fertilizer use and runoff can help maintain river health.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-5/evs/
See lessWhat do you mean green blanket of any water bodies?
The term “green blanket” refers to the thick growth of water plants or algae covering a water body. This usually happens when fertilizers from farms enter rivers, causing fast plant growth. The blanket blocks sunlight, reduces oxygen and makes life hard for fish and underwater plants. It also makesRead more
The term “green blanket” refers to the thick growth of water plants or algae covering a water body. This usually happens when fertilizers from farms enter rivers, causing fast plant growth. The blanket blocks sunlight, reduces oxygen and makes life hard for fish and underwater plants. It also makes the water look dirty and unsafe. Managing farming practices can reduce such harmful growth.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 1: Life Around Us – Chapter 2: Journey of a River Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-5/evs/
See less