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ANSWER

Peparing CO2 from baking soda and vinegar How to do the experiment

Posted by Ramya Harshi 4 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Soham Shinde 4 years, 5 months ago

When baking soda is mixed with vinegar, something new is formed. The mixture quickly foams up with carbon dioxide gas. If enough vinegar is used, all of the baking soda can be made to react and disappear into the vinegar solution.

ANSWER

What is science

Posted by Harshit Sharma 4 years, 5 months ago

CBSE > Class 07 > Science

2 answers

Meet Sapra 4 years, 5 months ago

The study of knowledge about the physical world and natural laws is called science

Bhagyesh Lunkad 4 years, 5 months ago

You are mad

ANSWER

Difine nutrients

Posted by Aarya Namdev 4 years, 5 months ago

CBSE > Class 07 > Science

3 answers

Lavkesh Yadav 4 years, 5 months ago

These components of food which are necessary for our body are called nutrients

Yashi Bhatnagar 4 years, 5 months ago

The components of food are called nutrient

Agrita Verma 4 years, 5 months ago

Chemical substances found in food are called nutrients.

ANSWER

Green Plants are make their own food but human do not why?

Posted by Eshita Mahata 4 years, 5 months ago

CBSE > Class 07 > Science

5 answers

Poonam Agrawal 4 years, 5 months ago

humans does not have chlorophyll.

Agrita Verma 4 years, 5 months ago

Because humans does not have chlorophyll.

Golu Kamboj 4 years, 5 months ago

Beacuse human has no chlorophyll

Anurag Sinha 4 years, 5 months ago

Because the plant make food by Photosynthesis - water, mineral, chlorophyll, sunlight ,carbon dioxide and oxygen but human not make food by photosynthesis.

Krishna Prajapati 4 years, 5 months ago

Because of planis can breathe oxygen and carbon dioxide also

ANSWER

Effect of china rose solution on different solutions : SI.No. 1 2 3 4 5 6 7 Test solution Shampoo Lemon juice Soda water Baking soda Vinegar Sugar solution Common salt solution Effect on china rose solution Remarks

Posted by Priyanshu Dharia 4 years, 5 months ago

CBSE > Class 07 > Science

3 answers

Arvind Sinha 4 years, 5 months ago

Vinegar is also a acid but common salt is neutral

Arvind Sinha 4 years, 5 months ago

Shampoo is a base Lemon is a acid Baking soda base

Arvind Sinha 4 years, 5 months ago

When we add acid it become magenta clour ,and when we add base it become green

ANSWER

What is the use of Liver in digestive system?

Posted by Samar Sinha 4 years, 5 months ago

CBSE > Class 07 > Science

5 answers

Samar Sinha 4 years, 4 months ago

Lavkesh Yadav 4 years, 5 months ago

Liver secrets bile juice and it is stored in gall ballder and bile juice is help to digest the fat into fatty acid and glycerol

Samar Sinha 4 years, 5 months ago

Thank you both of you

Akkriti Behuray 4 years, 5 months ago

It secretes bile juice which helps in emulsification of fats (breaking down of fats into fatty acids and glycerol)

Arvind Sinha 4 years, 5 months ago

It help to digest fat

ANSWER

Chapter 4. Activity 4.11 What's the answer of that activity.

Posted by Vijayalaxmi Sahu 4 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Samar Sinha 4 years, 5 months ago

The answer is in the black can the water gets disappear faster and in white coloured can the water disappear slowly

4Thank You

ANSWER

what is crstalliysation

Posted by Payal Rani 4 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Sia ? 4 years, 5 months ago

Crystallization or crystallisation is the process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas.

ANSWER

What are seven fundamentel unit

Posted by Satyam Yadav 4 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Sia ? 4 years, 5 months ago

Length - meter (m)
Time - second (s)
Amount of substance - mole (mole)
Electric current - ampere (A)
Temperature - kelvin (K)
Luminous intensity - candela (cd)
Mass - kilogram (kg)

ANSWER

Give a breif descripition of process of synthesis of food in green plants

Posted by Kata. Neha Sri Kata . Neha Sri 4 years, 5 months ago

CBSE > Class 07 > Science

3 answers

Sia ? 4 years, 5 months ago

The process of synthesis of food in green plants is called photosynthesis. This process takes place in the cells containing the green pigment chlorophyll. The raw materials for this process are water, carbon dioxide and sunlight. Water and minerals present in the soil are absorbed by the roots and transported to the leaves. Carbon dioxide from air is taken in through the stomata present on the leaf surface. During photosynthesis, chlorophyll containing cells of leaves, in the presence of sunlight, use carbon dioxide and water to synthesise carbohydrates. The process can be represented as an equation:

Samar Sinha 4 years, 5 months ago

Yuva Kiran 4 years, 5 months ago

ANSWER

What are components of food

Posted by Shivanshi Tomer 4 years, 5 months ago

CBSE > Class 07 > Science

3 answers

Pragati Agrawal 4 years, 5 months ago

The components of food are carbohydrates, fats, protein, minerals, vitamins, roughage and water

Anurag Sinha 4 years, 5 months ago

The components of food is proteins,fats,mineral,vitamins,carbon

Samar Sinha 4 years, 5 months ago

Carbohydrate, fats, proteins, vitamins and minerals, water

ANSWER

Draw the digestive system of human and labelit

Posted by Gurjeet Kour 4 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Sia ? 4 years, 5 months ago

ANSWER

In 1,2,5 chapter make 20 short queastion and ansers

Posted by Akriti Chaudhary 4 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Sia ? 4 years, 5 months ago

<a href="https://mycbseguide.com/course/cbse-class-07-science/1525/">https://mycbseguide.com/course/cbse-class-07-science/1525/</a>

ANSWER

Give a brief description of the process of synthesis of food in green plants.

Posted by Aditya Rao Yadav 4 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Sia ? 4 years, 5 months ago

The process by which plants make food is photosynthesis. Photosynthesis is the process in which green plants use sunlight to make their own food. Photosynthesis requires sunlight, chlorophyll, water, and carbon dioxide gas. Chlorophyll is a substance in all green plants, especially in the leaves. Plants take in water from the soil and carbon dioxide from the air. Autotrophs are the class of plants that are capable of preparing their own food.

ANSWER

What is definition of Bile

Posted by Marapalle Gauravi 4 years, 5 months ago

CBSE > Class 07 > Science

4 answers

Sia ? 4 years, 5 months ago

Bile is a yellow-green fluid that is made by the liver, stored in the gallbladder and passes through the common bile duct into the duodenum where it helps digest fat. The principal components of bile are cholesterol, bile salts, and the pigment bilirubin.

Aarav & Aarya Kar 4 years, 5 months ago

Bile is stored sac of gall bladder

Akkriti Behuray 4 years, 5 months ago

Bile is a yellow-greenish fluid secreted by liver and stored in gallbladder for emulsification of fats.

Nitya Shukla 4 years, 5 months ago

Bile is stored in gall bladder. Bile converts fats into tiny droplets so there futher breakdown become easy.

ANSWER

6 Fungi Leaf 7 Animals Carob dioxide, oxygen 8 Photosynthesis Saprotrophs 9 Rhizobium Heterotrophs 10 Chlorophyll Nitrogen

Posted by Abhishek Sahu 4 years, 5 months ago

CBSE > Class 07 > Science

1 answers

Sia ? 4 years, 5 months ago

Please ask question with complete information.

4Thank You

ANSWER

What is a convection

Posted by Dhruva Manne 4 years, 5 months ago

CBSE > Class 07 > Science

4 answers

Nitya Shukla 4 years, 5 months ago

Convection is the transfer of heat from hotter part of liquid or gas to its colder part by the movement of liquid as whole.

Anshul Anshul 4 years, 5 months ago

Hi I'm your class mate

5Thank You

Adwitiya Kumar 4 years, 5 months ago

The mode of tranfer of heat from the hotter part of the fluid(LIQUID OR GAS) to it's colder parts by the movement of the liquid or gas itself is known as convection.

Adwitiya Kumar 4 years, 5 months ago

The mode of tranfer of heat from the hotter part of the fluid(LIQUID OR GAS) to it's colder parts by the movement of the liquid or gas itself is known as convection.

ANSWER

Ex of citrus fruit

Posted by Riya Yadav 4 years, 5 months ago

CBSE > Class 07 > Science

3 answers

Sia ? 4 years, 5 months ago

Plants in the genus produce citrus fruits, including important crops such as oranges, lemons, grapefruits, pomelos, and limes.

Arvind Sinha 4 years, 5 months ago

Lemon are example of

Nitya Shukla 4 years, 5 months ago

Orange , apple

ANSWER

What do you mean by tooth decay

Posted by Priyanshi 6232 4 years, 5 months ago

CBSE > Class 07 > Science

5 answers

Sia ? 4 years, 5 months ago

Cavities are permanently damaged areas in the hard surface of your teeth that develop into tiny openings or holes. Cavities, also called tooth decay or caries, are caused by a combination of factors, including bacteria in your mouth, frequent snacking, sipping sugary drinks and not cleaning your teeth well.

Nitya Shukla 4 years, 5 months ago

Tooth decay is a process in which tooth becomes rotten due to the formation of cavity inside it leading to toothache.

Ravneet Kaur 4 years, 5 months ago

If we don't clean our teeth and mouth after eating many harmful bacteria also begin to live and grow in it. These bacteria breaks down the sugar present from leftover food and release acid the acid damaged our teeth. This is called tooth decay.

Rakesh Kumar 4 years, 5 months ago

Thvxyij

Md Aquib Jawed 4 years, 5 months ago

ANSWER

What is the definition of Amino acid

Posted by Marapalle Gauravi 4 years, 5 months ago

CBSE > Class 07 > Science

4 answers

Sia ? 4 years, 5 months ago

Amino acid, any of a group of organic molecules that consist of a basic amino group (―NH2), an acidic carboxyl group (―COOH), and an organic R group (or side chain) that is unique to each amino acid. The term amino acid is short for α-amino [alpha-amino] carboxylic acid. Each molecule contains a central carbon (C) atom, called the α-carbon, to which both an amino and a carboxyl group are attached. The remaining two bonds of the α-carbon atom are generally satisfied by a hydrogen (H) atom and the R group.

Lavkesh Yadav 4 years, 5 months ago

When the protein breakdown into simpler substances it change into amino acid

Nitya Shukla 4 years, 5 months ago

Amino acid is the simplest form of protein.

Arpana Swain 4 years, 5 months ago

ANSWER

What is the process of wool

Posted by Divija Sinha 4 years, 5 months ago

CBSE > Class 07 > Science

2 answers

Sia ? 4 years, 5 months ago

The major steps necessary to process wool from the sheep to the fabric are: shearing, cleaning and scouring, grading and sorting, carding, spinning, weaving, and finishing.

Arpana Swain 4 years, 5 months ago

The major steps necessary to process wool from the sheep to the fabric are: shearing, cleaning and scouring, grading and sorting, carding, spinning, weaving, and finishing.

ANSWER

What is the action of stomach in our body ??

Posted by Priyanshi 6232 4 years, 5 months ago

CBSE > Class 07 > Science

3 answers

Lavkesh Yadav 4 years, 5 months ago

Stomach have three lining they are mucous,hydrochloric acid, and digestive juice which helps to digest the food

Priyanshi 6232 4 years, 5 months ago

Thanks for telling answer

Yashika R Ail 4 years, 5 months ago

Stomach. Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices.

4Thank You

ANSWER

What is the used of litmus paper

Posted by Anshika Shukla 4 years, 5 months ago

CBSE > Class 07 > Science

2 answers

Nesa Mary Johny 4 years, 5 months ago

Litmus paper is an indicator to test weather a given substance is acid or base

Yashika R Ail 4 years, 5 months ago

The main use of litmus is to test whether a solution is acidic or basic. Light Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple

ANSWER

From which substance we find out what is bace or acid

Posted by Anshika Shukla 4 years, 5 months ago

CBSE > Class 07 > Science

3 answers

Lavkesh Yadav 4 years, 5 months ago

We can taste acidic natural substance by using taste and basic also

Nitya Shukla 4 years, 5 months ago

By using indicators

Yashika R Ail 4 years, 5 months ago

The pH scale is the most common and trusted way to measure how acidic or basic a substance is. A pH scale measure can vary from 0 to 14, where 0 is the most acidic and 14 is the most basic a substance can be. Another way to check if a substance is acidic or basic is to use litmus paper.