2. Growth: A small plant will grow into a tree one day. We all grow in size with time. All living things grow.
Non-living things do not grow. A small chair will not become a big chair with time, size of a kite, a vehicle, refrigerator, computer, pen, window will not change because all these are non-living things.
A baby elephant becomes a big elephant one day.
Like this all living things grow in size.
3. Food and Water: When we talk about our growth everybody suggests us to eat healthy food and drink milk. This is because living things need food to grow. We get our strength and energy from the food we eat. But all living things more... | MAMMALS | REPTILES | ||
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Why are we studying about rocks?
If we took all the rocks away, we would have a miserable life. We use rocks for roads, metals, jewelry, tombstones, building materials, cosmetics, and many, many more things. Most of the famous sculptures of the world are made from blocks of stones such as granite and marble. Did you know that the Great Wall of China and the Taj Mahal are made out of rocks? If we did not have rocks, this earth mould be pretty empty. We can also collect rocks as a hobby.
Amazing Facts
USES OF ROCKS
Rocks have been used by human beings more... 
WORK
When we apply some force to move something and that thing moves then work is said to be done. It does not matter how much the force is applied, if the thing gets displaced from its position work is said to be done. On the other hand if after applying the force the object does not get displaced work is said to be not done.
For example: If we push the wall with great force, the wall does not get displaced. In this case we have not done any work. But if we push a ball very lightly and it starts rolling, the work is said to be done.
FORCE
When we want to move something we either push or pull it at this point we are putting force. By applying force, we can bring a body at rest, or in motion. For example when you kick a ball it comes into motion. You are applying force in your kick.
We can also stop a moving body and bring it to rest by applying force. Like, you can stop a moving ball. So we can
Say:
When we push or pull something we are applying a force on it.
Friction is the force which stops the movement of a body when the body is in contact with surface.
Force moves the objects and friction force stops the object.
Force more... 
New arrival in the family- New born baby and adoption
There are a lot of people involved in this cycle of transfer of food from farmers to us.
The farmers sell the crops to the large mandi. They further transport the crops to very far distances with the help of trucks. The trucks further carry them to the smaller mandis in different cities. The vegetable sellers, fruit sellers and other small cereal sellers buy them from these mandis and sell them to us.
PLANTS AND ANIMAL FOODS
We get food items from both plants arid animals. Food items like fruits, vegetables, cereals and pulses are obtained from plants. Others like milk and milk products (curd, paneer, butter, cheese etc.), meat, eggs. fish, honey are obtained from animals.
Food items can be grouped into the following; Fruits: Mango, Apple, Banana, Cheeku, Grapes, Litchi, Cherry
Vegetables: Potato, Tomato, Cauliflower, Carrot, Peas, Beans
Cereals: Wheat, Rice, Maize, Bajra, Jowar Pulses: Arhar dal, Moong dal. Chickpea (chana), Rajma
Spices: Salt, Pepper, Turmeric and many more Oil seeds: Mustard, flax, corn, wheat etc.
Other food items can be milk and milk products, meat, eggs, fish, honey.
Different vegetables, fruits, cereals and pulses grow in different seasons according to conditions required for them to grow.
Spices: Spice is a dried seed. fruit, root, bark, or vegetative substance primarily used for flavouring, colouring or preserving food. Sometimes a spice is used to hide other flavours. Spices are distinguished from herbs, which are parts of leafy green plants more... 
QUICK CONCEPT REVIEW
Have you heard of houses being damaged by floods, earthquakes, cyclones, fires, storms, lightening?
Natural disasters like floods, earthquakes, cyclones, fires, storms, lightening damage both life and property. Many people die in these disasters; lose their homes, fields, family, friends, relatives and animals etc.
Manmade disasters like road accidents or some accidents which happen by chance like fire, wounds, insect bites are also very harmful or may even lead to death.
In case of major calamities like earthquakes, floods etc. some people take an initiative to help people without their own benefit. They are called volunteers.
Some organisations-both government and non-government help in such cases. We should always inform ambulance, police and fire brigades to help in such situations according to the need. What can you do to help others in such cases before the doctor arrives? When such calamity or an accident occurs, it may take some time for the doctor to reach or to take the wounded person to a hospital. In such a case, the immediate help given to the wounded person on the spot is called emergency care or first aid. It also refers to the immediate and temporary help given to patient in case of sudden illness before the medical expertise can be taken. So, it is very important to learn first aid techniques to help ourselves as well as others in case of emergencies.
What is the major objective of first aid? First aid is given not to cure but prevent the condition of the patient from becoming worse. For this, you will need a first aid Kit. A first aid kit is a kit containing important articles like bandage, cotton wool, dettol, burnol, etc. which are needed to help people in case of emergency.
Amazing Facts
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