CBSE > Class 06 > Science | CBSE Board | Homework Help

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Vaishali Borkar 5 months, 3 weeks ago

Hi sir or mam I am shreya are teacher told us to write notes of12 lesson

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What is consciousness?

Posted by Harsh Meena 5 months, 4 weeks ago

CBSE > Class 06 > Science

0 answers

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Which animal have not given Milk

Posted by Samarth Subhash Dabhade Dabhade 5 months, 4 weeks ago

CBSE > Class 06 > Science

4 answers

Mohammad Khubaib 5 months, 3 weeks ago

write to example for each the following

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Harshvardhan Singh 5 months, 3 weeks ago

Shouts answer

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Kritanjali Das 5 months, 4 weeks ago

Hen

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Harsh Meena 5 months, 4 weeks ago

Not all animals produce milk. Some animals, like reptiles and birds, do not produce milk. Milk production is primarily a characteristic of mammals. Mammals are unique in their ability to produce milk to nourish their young. So, animals such as snakes, lizards, and most birds do not produce milk.

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How can we observe the root system of a plant without pulling it out of the soil.

Posted by Jabesh Beig 6 months ago

CBSE > Class 06 > Science

1 answers

Harsh Meena 5 months, 4 weeks ago

Observing the root system of a plant without pulling it out of the soil can be done through various non-invasive methods. Here are a few techniques to consider: 1. **Soil Excavation:** Gently excavate the soil around the plant using a small hand trowel or shovel. Be very careful not to damage the roots. This will expose a portion of the roots for observation. 2. **Transparent Containers:** For potted plants, you can use transparent containers like glass or plastic pots. These containers allow you to see the root growth through the sides of the container without disturbing the plant. 3. **Rhizotrons:** These are specialized devices that have transparent sides, allowing you to view the root system's growth in real-time. They are often used in research settings. 4. **Soil Cores:** Use a soil core sampler to extract a cylindrical section of soil from around the plant. This can provide a view of the roots within the soil core. 5. **Root Tubes:** You can use root observation tubes, which are clear tubes that can be inserted into the soil to observe root growth. These are commonly used in educational settings. Remember that when using these methods, it's essential to be as gentle as possible to avoid damaging the plant's roots, as they are critical for its health and growth.

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Why plants need oxygen, and what is the use of oxygen for plants.(science chapter 7 getting to know plants)

Posted by Jabesh Beig 6 months ago

CBSE > Class 06 > Science

1 answers

Harsh Meena 5 months, 4 weeks ago

Plants do need oxygen, but their relationship with oxygen is somewhat different from animals. Here's why: 1. **Respiration**: Plants undergo a process called cellular respiration, just like animals. During respiration, they use oxygen to break down sugars and other organic molecules to generate energy (in the form of ATP) for their growth and metabolic processes. While plants can produce some of their own oxygen through photosynthesis, they still need to take in oxygen from the surrounding environment to support their cellular respiration. 2. **Roots**: Oxygen is essential for the roots of plants. The roots of most plants need oxygen to carry out aerobic respiration, especially in the absence of oxygen-producing processes like photosynthesis. Oxygen is required for the metabolic activities in the root cells, and it helps in nutrient uptake from the soil. 3. **Mitochondria**: Similar to animals, plants have mitochondria in their cells, and these organelles require oxygen to produce energy efficiently. Oxygen is the final electron acceptor in the electron transport chain within mitochondria, which is vital for ATP synthesis. 4. **Stress Response**: In waterlogged or flooded conditions, plants can experience oxygen deprivation in their root zone. This lack of oxygen can be harmful to plant roots and overall growth. In such situations, plants may develop adaptations to enhance oxygen uptake or switch to anaerobic metabolic pathways temporarily. In summary, plants need oxygen primarily for respiration, especially in their roots, and to support energy production in their cells. While they can generate some oxygen during photosynthesis, they still rely on external oxygen sources.

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What is warp and weft

Posted by Divya Vinod 6 months ago

CBSE > Class 06 > Science

2 answers

Mohit Singh Gurjar 5 months, 4 weeks ago

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Sumi Rajkumar 6 months ago

The

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What is the difference between adaptation and habitat

Posted by Yashvi . 6 months ago

CBSE > Class 06 > Science

2 answers

Harsh Meena 5 months, 4 weeks ago

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Mohit Singh Gurjar 6 months ago

Mental

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What is Cartilage? Mention body parts where it is found

Posted by Anbumalar Palani 6 months ago

CBSE > Class 06 > Science

1 answers

Tanishk Seervi 6 months ago

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Give reason plants cannot survive without roots

Posted by Surendrakumar Sonwane 6 months ago

CBSE > Class 06 > Science

2 answers

Harsh Meena 5 months, 4 weeks ago

Plants cannot survive without roots for several important reasons: 1. **Anchorage**: Roots anchor the plant firmly into the soil, providing stability and preventing it from being easily uprooted by wind, rain, or other forces. This anchorage is crucial for the plant's stability and overall survival. 2. **Water and Nutrient Uptake**: Roots are responsible for absorbing water and essential nutrients from the soil. These resources are vital for the plant's growth, photosynthesis, and overall metabolic processes. Without roots, the plant cannot access the necessary elements for its survival. 3. **Storing Nutrients**: Roots often store carbohydrates and other nutrients that the plant can utilize during times of scarcity. This storage function helps the plant survive adverse conditions, such as drought or winter. 4. **Transport of Water and Nutrients**: Roots play a crucial role in transporting water and nutrients from the soil to the rest of the plant, including the leaves. This transport system, known as the xylem and phloem, is essential for distributing these vital resources to different parts of the plant. 5. **Supporting Symbiotic Relationships**: Many plants form symbiotic relationships with mycorrhizal fungi through their roots. These fungi help improve nutrient uptake and overall plant health. Without roots, these beneficial partnerships cannot exist. In summary, roots are essential for a plant's survival because they provide stability, enable water and nutrient uptake, store nutrients, facilitate the transport of vital resources, and support important symbiotic relationships. Without roots, a plant would be unable to access the resources it needs and would struggle to survive.

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Jabesh Beig 6 months ago

1) Now plants can't take water and minerals from the soil 2) Roots hold the plant tightly so if us strong wind came the plant would blow up

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How will you that air for oxygen is necessary for buring

Posted by Sarju Prasad Gupta 6 months, 1 week ago

CBSE > Class 06 > Science

1 answers

Sarju Prasad Gupta 6 months ago

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Papa

Posted by Vinod Kumar Sharma 6 months, 1 week ago

CBSE > Class 06 > Science

1 answers

Mohit Kumar 6 months ago

Don't post personal information, mobile numbers and other details.
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Why can a pace or a footsteps not be used as a standard unit of length

Posted by Raj Veer Choudhary Raj Veer Choudhary 6 months, 1 week ago

CBSE > Class 06 > Science

2 answers

Jabesh Beig 6 months ago

A pace or a footstep cannot be used as a standard unit of a length because every persons footsteps and pace are different from each other. Instead we use standard unit of measurement such as metre centimetre kilometre etc. Metre is the standard unit (SI unit) of length.

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Mohit Kumar 6 months, 1 week ago

A pace or a footstep not be used as a standard unit of length because the size of vary from person to person.this will lead to confusion while measuring the lengths by different persons.we should use standard unit like international system of units(SI units)

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Sampanjie

Posted by Mstrojifa Rojifa Khatun 6 months, 1 week ago

CBSE > Class 06 > Science

1 answers

Raj Veer Choudhary Raj Veer Choudhary 6 months, 1 week ago

व्हाई कैन ए स्पेस ओर ए फुट स्टेप नॉट बे यूज्ड स

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Plant in adaptation lesson

Posted by Anjali Pawar 6 months, 2 weeks ago

CBSE > Class 06 > Science

0 answers

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True or false retting is needed to extract jute fibre

Posted by Harish Datwani 6 months, 2 weeks ago

CBSE > Class 06 > Science

5 answers

Mohit Kumar 6 months, 1 week ago

True

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Mokshitha Sri 6 months, 1 week ago

True

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Abhinav Shah 6 months, 2 weeks ago

True

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Shrawani Jagtap 6 months, 2 weeks ago

True

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Deb Majumder 6 months, 2 weeks ago

Help

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Can you give an app which gives sample papers for class 6 ncert

Posted by Anshika Gola 6 months, 2 weeks ago

CBSE > Class 06 > Science

0 answers

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If we connect two bulbs in a circuit What will happen?

Posted by Aaradhya Baghla 6 months, 2 weeks ago

CBSE > Class 06 > Science

1 answers

Rohit Kumar 6 months, 2 weeks ago

It blasts

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Is glass a conductor or insulator

Posted by Aaradhya Baghla 6 months, 2 weeks ago

CBSE > Class 06 > Science

1 answers

Jabesh Beig 6 months ago

Insulator, glass has more resistance it cannot conduct electricity so its an insulator.

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How do fish and other forms of marine life survive in the region near the poles during winter

Posted by Shivam Patil 6 months, 2 weeks ago

CBSE > Class 06 > Science

0 answers

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What is a ball and socket joint ?

Posted by Eshita Singh 6 months, 2 weeks ago

CBSE > Class 06 > Science

2 answers

Hana Fathima P N 6 months, 1 week ago

The joined which in shoulder photo you can see in google

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Tushar Jogi 6 months, 2 weeks ago

Netwon first

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Which 2 parts of a flower are reproductive ang vegetative

Posted by Mishti Batra 6 months, 4 weeks ago

CBSE > Class 06 > Science

4 answers

Rohini Rathod 6 months, 2 weeks ago

Kistampeta

1Thank You

Kruthi Reddy Kistampeta 6 months, 3 weeks ago

1Thank You

Tarish Basotra 6 months, 3 weeks ago

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

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Pinky . 6 months, 4 weeks ago

How many vitamins do have

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Explain pendulum working please now

Posted by Anvesha Shukla 7 months ago

CBSE > Class 06 > Science

2 answers

Harsh Meena 5 months, 4 weeks ago

A pendulum is a simple mechanical device that consists of a weight (known as the pendulum bob) attached to the end of a string or rod. When a pendulum is set in motion, it exhibits a back-and-forth swinging motion. This motion is governed by the principles of physics, specifically related to the force of gravity and the conservation of energy. Here's how a pendulum works: 1. **Gravity**: The primary force at play in a pendulum is gravity. When the pendulum bob is lifted and released, gravity pulls it downward. 2. **Potential Energy**: As the pendulum bob is lifted, it gains potential energy due to its height above the lowest point it can reach. This potential energy is converted into kinetic energy as the bob is released. 3. **Swinging Motion**: The release of the pendulum bob allows it to start swinging back and forth. The energy is constantly converted between potential energy (at the highest point of the swing) and kinetic energy (at the lowest point of the swing). 4. **Period**: The time it takes for the pendulum to complete one full swing, from one extreme position to the other and back again, is known as the "period." The period of a pendulum depends on its length and the acceleration due to gravity but is largely independent of the initial angle from which it is released. 5. **Regular Motion**: If the pendulum is not subjected to significant air resistance or friction, its motion remains regular and predictable. This is why pendulums are often used in timekeeping devices like grandfather clocks. 6. **Damping**: In real-world situations, pendulum motion is often affected by air resistance and friction, which can gradually slow down the swinging. This is referred to as damping, and it causes the pendulum's motion to eventually stop. Pendulums have been used historically for timekeeping in clocks and are also found in various scientific instruments and applications due to their consistent and predictable motion. The period of a pendulum can be calculated using the formula: T = 2π √(L / g) Where: - T is the period of the pendulum. - L is the length of the pendulum. - g is the acceleration due to gravity. This formula illustrates the relationship between the period, length of the pendulum, and gravity's influence on its motion.

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Tanvee Choudhary 6 months, 4 weeks ago

Time is measured by making use of the time taken by its pendulum to complete one oscillation

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The chemical used for testing the presence of sugar in food

Posted by Tanvee Choudhary 7 months ago

CBSE > Class 06 > Science

5 answers

Harsh Meena 5 months, 4 weeks ago

The chemical commonly used for testing the presence of sugar in food is Benedict's solution. Benedict's solution is a blue liquid that contains copper sulfate and other compounds. When heated in the presence of reducing sugars, such as glucose or fructose, it changes color from blue to green, yellow, orange, or even red, depending on the concentration of sugar present. This color change serves as an indicator of the presence of reducing sugars in a food sample and is often used in laboratory tests to detect the presence of sugar in various food products.

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Aaradhya Baghla 6 months, 2 weeks ago

Iodine solution

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Rohini Rathod 6 months, 2 weeks ago

Iodine solution

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Darsh Gupta 6 months, 4 weeks ago

Iodine solution

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Shreyasi Jaiswal 7 months ago

Benedict's solution

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Two muscles work together to move a bone-how

Posted by Nithin Gowda. S 7 months ago

CBSE > Class 06 > Science

1 answers

Bikramjeet Bajwa 6 months, 3 weeks ago

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
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Does Margin gives shape to the roo

Posted by Aryaveer Ahuja 7 months ago

CBSE > Class 06 > Science