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Class VI - Science: Our Food
One Word Answer Questions:
Q) What is essential for all living things?
    
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Q) Which group prepare their own food and store in their special organs as fruits and seeds?
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Q) Which type of animal eats only plants?
    
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Q) Milk, eggs,poultry, meat are the examples of which food products?
    
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Q) The products which can be made from milk are known as?
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Short Answer Questions:
Q) What is the importance of food?
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Q) What are nutrients?
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Q) Write a note on the foods obtained from plants?
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Q) Explain about the animal food products?
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Long Answer Questions:
Q) Explain about the Herbivores in detail?
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Q) Explain briefly about the food Materials and sources?
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Q) What are the edible parts of the plant?
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Q) Differentiate between Herbivores and Carnivores?
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Q) What are the edible animal products with examples?
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Q) Explain briefly how animals are grouped based on the food they eat?
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Food habits

People living in one region usually share common food habits.

  • paddy fields geographical and climatic conditions are more suitable for growing rice so it produce more rice.
  • Even though farmers grow various types of food crops use paddy.
  • A variety of food items are prepared using rice.
  • More rice and rice products as compared to other cereals like wheat or maize.
  • But in Rajasthan, maize, bajra and wheat is produced more than rice. So the main food in Rajasthan is chapathi or roti.
Different methods of preparing food
  • Preparing food is an extremely important art, essential for life.
  • There are many ways of preparing food. Rice is boiled but idly is not made in the same manner.
  • For making idly, rice and dal are fermented, Potato chips are fried in oil.
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Processes involved in making food

Tasty Food
  • The taste of food depends on its ingredients, method of preparation and our cultural habits.
Example
How to make tomato curry
  • To prepare it, we need
  • two tomatoes
  • one onion
  • two green chillies
  • one red chilly
  • turmeric powder
  • salt
  • oil
  • mustard seeds
  • black gram and
  • jeera
Preparation
  • First of all, clean all the vegetables in water, and chop them into pieces.
  • place a pan on the flame.
  • Pour three spoons of oil.
  • When oil becomes hot, put one spoon-full of mustard, black gram and jeera.
  • Then add green and red chilli pieces and put a pinch of turmeric powder.
  • Half a minute later add pieces of onion and tomato. Then add some salt and close the lid.
  • After five minutes the tasty curry is ready.
Preservation of food
  • Food will be incomplete unless we talk about food preservation.
  • How do farmers protect rice from pests and store it after it is harvested? How is rice stored in your home? Why does curry get spoiled when kept out for a couple of days but pickle stays fresh for so long? It is only because of preservation.
  • For preserving certain food-items, they are salted and dried.
  • In certain areas dried fish is commonly used.
  • Vegetables and meat are also dried and pickled.
  • salt and turmeric powder are used for preservation while making pickles.
  • In coastal areas it's a common sight to see fish being smoked for preservation.
Food
Introduction
  • Food is essential for all the living organisms.
  • Plants prepare their own food and store in their special organs as fruits, tubers, seeds etc.
  • Animals and human beings depend on this stored food of plant. Bigger animals depend on smaller animals for their food.
  • Human beings also depend on animals for their food.
Importance of food
  • Food provides energy.
  • Food is needed for growth.
  • Food helps in maintaining good health.
  • Food helps in maintaining body functions.
  • Food is necessary to heal wounds.
Food Variety
food
Variety Of Food

Ingredients
  • Food comprises of ingredients. An ingredient is a part of mixture that is added to prepare a dish.
  • Ingredients vary with different types of food. Ingredients can be obtained from plant sources and animal sources.
Nutrients
food
  • Food comprises of essential nutrients namely, carbohydrates, proteins, fats, vitamins and minerals.
  • Carbohydrates and fats are called as energy providing food. Proteins are called as body-building food. Vitamins and minerals are called as protective food.
Food Materials and Sources

Plant food products:
food

Plant food products are the different types of food that we get from plants. Green plants are the primary source of food. Plants provide us with vegetables, fruits, cereals, pulses, spices, nuts, oils etc.

Animal food products:
food
  • Animal food products are the different types of food that we get from animals.
  • Animals provide us with different products like milk, eggs, poultry, meat, honey etc.
  • Animals obtain their food from plants or other animals.
  • Poultry farm is the place used to rear birds for their eggs and meat.
  • Dairy farm is the place where buffaloes, goats, cows, sheep, pigs etc, are kept in shed for rearing. We rear animals for their milk and meat. Milk is also used to prepare dairy products.
  • Aquaculture includes rearing of fish, crabs, lobsters etc. Fish provide their meat for us. Fish can be marine or freshwater fish.
Edible parts of the plant:

Almost all parts of the plants such as leaves, stems, roots, fruits, and seeds are considered to be edible parts.

  • Roots: We eat plant roots in the form of carrot, turnip, radish and beetroot.
  • Stem: We eat stems of some plants as in sugarcane, coriander. One form of stem tuber is potato. We also eat underground stem in the form of ginger
  • Leaves: Many green leaves are the sources of calcium. Some leaves that we eat are spinach, cabbage, amaranthus, curry leaves etc. Onion is also a form leaf which is underground.
  • Flowers: Flowers of pumpkin, cauliflower are edible flowers. Some types of roses are also edible.
  • Fruits: We get edible fruits from many plants. Fruits can be fleshy fruits or dry fruits. E.g. mango, guava, orange, apple, pear, grapes, banana etc. Almonds, cashew nut are used as nuts.
  • Some fruits are used as vegetables. Some of them are eggplant, tomato, lady's finger, beans, bottle gourd, snake gourd, bitter gourd etc.
  • Seeds: Seeds which are edible can be used as grains, pulses and oilseeds.
    Grains: Grains include rice, wheat, jowar, maize, ragi etc.
    Pulses: Pulses include grams, peas, beans etc.
    Oil: Oil seeds include groundnut, sesame, mustard, coconut, sunflower seed etc.
plant

Edible animal products:
  • Milk: Animals like cows, buffaloes, goat, and camel provide us their milk. Milk is rich in proteins, fats, carbohydrates, vitamins and minerals. It is called as complete food as it has all the nutrients.
  • Eggs: Eggs are rich source of proteins. We get eggs from birds like hen, duck etc.
  • Meat: Flesh of animals is called as meat. We get this form hen, duck, sheep, goat, pig, cow etc.
food
  • Sea food: Fish, prawns, crabs also provide us their meat as food.
  • Honey: This is the food product obtained from honey bees. They collect nectar from different flowers, mix it with a secretion from their mouth and convert it into honey. Bees store this honey in their bee hives.
  • Dairy products: The products which can be made from milk are called as dairy products. Some common dairy products which we use in our daily life are paneer, cheese, cream, butter, curd, ghee etc.
animals
What To Do Animals Eat?

Animals and their food

Based on food they eat, animals are grouped into three groups namely, herbivores, carnivores, omnivores and decomposers.

  • Herbivores: Animals which eat only plants are called as herbivores. These are also called as grass-eating animals. e.g. Cow, sheep, goat, deer, buffalo, camel etc.
  • animals
  • Carnivores: Animals which eat only small animals are called as carnivores. These are also called as flesh-eating animals. e.g. Tiger, lion, jackals, vultures etc.
  • animals
  • Omnivores: Animals which eat both plants and animals are called as omnivores. E.g. Human being, bear, crow etc.
  • animals
  • Decomposers: Organisms which feed on dead plants, dead animals and rotten materials for their food are called as decomposers.
Food habits in human beings:

Human beings, based on the type of food they eat are grouped into two groups namely, vegetarians and non-vegetarians.

  • Vegetarians: These are the individuals who depend on plants and plant products for their food. Vegetarian diet comprises only pulses, grains, cereals, fruits, vegetables.
  • animals
  • Non-vegetarians: These are the individuals who depend on animals and animal products for their food. Non-vegetarian diet comprises eggs, meat, fish, poultry etc.
  • animals
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