Subject: E.V.S.E.CW.

Transcription

1 Std:III rd. Subject: E.V.S.E.CW. Sl.no. Title. Peg No 1) The Living and non The living. 2 2) Living things Around us. 3 3) The World animals ) Environment Around us ) Our sense organ ) Our teeth. 7 7) Variety of food ) States and properties of substance ) Properties of water. 10 1

2 The Living and the Non-Living I Answer the Following Q 1) Write the names of any three living things that you have observed at home? Ans: Dog, Cat, Cow are the three living things. Q 2) Write the names of any non-living things that you use? Ans: Table, Chair and pencil are the three non-living things that we use. Q 3) What are the important features of Living things? Ans: The important features of Loving things are: 1) Living things grow. 2) Living things need food. 3) Living things breathe. 4) Living things give birth to young ones of their own kind. Q 4) Which are the Non-living things that plants need for their growth? Ans: Plants need air, water and soil to grow. II Group the following into living and Non-Living Living Non-Living 1) Cow 1) Table 2) Hen 2) Chair 3) Fish 3) House 4) Coconut tree 4) Stone 5) Elephant 5) Book III Fill in the blanks 1) Things without life are called Non-living things. 2) Living things need Food. 3) Living things require Non-living things to live. 4) Seeds germinate into plants. IV Pick the word which does not belong to the group 1) Buffaloes, rose, plant, elephant, stone 2) Soil, water, air, Flower. 3) Earth worm, cat, rabbit, jasmine. 4) Lilly, sunflower,crow, pencil 2

3 Living Things Around Us Q1) Write the names of two animals which we rear? Ans: The animals which we rear are sheep, cow etc. Q2) Write the names of five plants found in your school garden? Ans: Some plants that grow in our school garden are rose plant, tulsi plant, show plant and Jasmine plant, lily plant. Q3) Name the parts which the following animals use for their movement? Ans: Horse: Uses its Legs. Snake: Uses its belly. Pigeon: Uses its Wings. Fish: Uses its fins. Q 4) List down the difference between plants and animals. Ans: The difference between plants and animals are Plants Animals 1) Plants are fixed in soil. 1) Animals move from one place to another 2) Plants prepare their own food 2) Animals depend on plants for food 3) Plants grow till they die 3) Animals grown until a certain limit. II Fill in the blanks 1) Leaves of plants are generally green in colour. 2) Animals move from one place to another. 3) Animals grow until a certain time. 4) Parts of plants and parts of body of animals are not similar. III Tick the correct statement 1) Animals move from one place to another ( ) 2) Plants need food ( ) 3) Plants do not breathe ( ) 4) All animals are white in colour ( ) 5) Different animals have different shapes and body parts ( ) 3

4 The World of animals Q 1) Name any two wild animals? Ans: Lion and tiger the two wild animals. Q2) Name any two domestic animals? Ans: Cow and goat are the two domestic animals. Q 3) What are terrestrial animals? give example? Ans: Animals which live on land are called terrestrial animals Ex: horse, camel etc. Q 4) What are aquatic animals? give example. Ans: Animals which live in water are called aquatic animals. Ex: Fish, octopus etc. Q 5) What are arboreal animals? Give example. Ans: Animals which live on trees are called arboreal animals Ex: birds, monkeys etc. Q 6) How many groups of animals can you identify based on their food habits? Ans: There are three groups of animals based on their food habits they are: 1) Herbivorous. 2) Carnivorous. 3) Omnivorous. Q7) What are herbivorous animals? Ans: Animals which feed on plants are called herbivorous animals. Ex: cow, sheep etc. Q8) What are carnivorous animals? Ans: Animals which feed on other animals are called carnivorous animals. Ex: lion, tiger etc. Q 9) What are omnivorous animals? Ans: Animals which feed on both plants and animals are called omnivorous animals. 4

5 Ex: Dog, cat etc. Q10) Name the difference between human beings and other animals. Ans: 1) Human beings stand and walk straight with two legs but animals walk on four legs. 2) Human beings can think better than animals. 3) The behavior of human beings differs from that of animals. II Fill in the blanks 1) The teeth are sharp in carnivorous animals 2) One of the animals which does not have legs is snake. 3) Based on food habits human beings belong to omnivorous groups. 4) Animals which live in water are called aquatic animals Environment Around Us Q 1) Write the names of any four trees that grow in the forest? Ans: Teak, rosewood, nandi and mango tree are the trees that grow in the forest. Q 2) Write the names of ant four animals that live in the forest? Ans: Bear, Dear, elephant and fox are the animals that live in the forest. Q3) What is a water fall? Ans: The water the valley flows in the plain and then falls from a height. This is a waterfalls. Q4) The pond is beautiful said the fish why? Ans: The pond is beautiful said the fish because many animals like frog, tortoise lived there. There was a lovely lotus and varieties of water plants in the pond. Q5) What is a plain? Ans: A plain is a flat areas a land. Q6) Why can t we drink sea water? 5

6 Ans: We can t drink sea water because it is salty. II Fill in the blanks. 1) The lowland between two hills is called valley. 2) The land on the either side of the river is suitable for farming 3) In dry land cactus plants grow using little water. 4) River joins sea. III Mark ( ) for correct statements and ( ) for wrong statements. 1) There are less number of plants and animals in the forest( ) 2) Plants and animals that live in plains are adapted to that place( ) 3) Plants and animals are not found in the sea( ) 4) The land between two hills is called water falls( ) Our Sense Organs Q 1) Name the five sense organs. Ans: Eyes, ears, nose, tongue and skin are the five sense organs. Q2) How do the eye help us? Ans: Eyes us to see the Surroundings, recognize the color, size and shape of the objects in the Surroundings. Q3) How do the ears help us? Ans: Ears help us to identify different types of sound. Q4) How do the nose help us? Ans: The nose helps us to breathe and to sense all types of smells. Q5) How do the tongue help us? Ans: The tongue helps us to sense the taste of the food, to talk and chew the food. Q6) How do the skin help us? Ans: The skin is the outer covering of body. It helps us to sense the touch and feel the pain. Q7) How should we take care of our eyes? 6

7 Ans: We should wash the eyes everybody with clean water. 1) We should read in bright light. 2) We should eat carrot and green vegetables. Q8) How should we take care of our ears? Ans: 1) We Should not put any sharp things in our ears. 2) We should avoid loud noises. Q9) How should we take care of our nose? Ans: we should not put fingers, stick, pencil or grains in our nose. Q10) How should take care of our skin? Ans: 1)We should bath everyday to keep our skin clean. 2)We should eat raw vegetables and fruits to keep the skin glowing and healthy. Q11) How should we take care of our tongue? Ans: 1) We should clean our tongue with the help of fingers. 2) We should rinse our mouth after eating. II Fill in the blanks. 1) Parts of the body which helps in sensing smell is nose. 2) Parts of the body which helps in identifying colours is eyes. 3) Parts of the body which helps in sensing the taste is tongue. 4) Part of the body which helps to sense warmth or smoothness is skin. 5) Part of the body which helps to sense sound is ears. Our Teeth Q1) Why do we need teeth? Ans: We need teeth to bite, cut, tear and grind the food. Q2) What causes tooth decay? Ans: The food particles which remain in between the teeth the teeth causes tooth decay. Q3) What are permanent teeth? Ans: When the milk teeth fall the new teeth appear. These teeth are called as permanent teeth. 7

8 Q4) How many teeth do we have? Ans: We have 32 teeth. II Fill in the blanks. 1) The teeth present in the front part of the gum are called incisors. 2) The teeth which help in tearing the food are canines. 3) The teeth which help in chewing the food are molars. 4) The first set of teeth that appear in children are milk teeth. Variety of food Q1) Write the names of five food materials which are available in plenty in your area.? Ans: Rice, Jawar wheat, mize and ragi are available in plenty in our area. Q2) What are the uses of food? Ans: Food gives us energy and helps us to grow healthy. Q3) Some food materials are eaten raw How does it help? Ans: Some food materials are eaten raw. Ex: carrot, cucumber etc. They give us plenty of nutrients. Q4) Our food should have fibrous materials why? Ans: Our food should have fibrous materials because they help in excretion and bowel movement. II Give two examples for each. Q1) Food which gives us energy? Ans: Ragi and maize. Q2) Food that helps in growth? Ans: Milk and eggs. Q3) Food that keeps the body away from diseases? Ans: Vegetables and fruits. Q4) Vegetables that can be eaten raw? Ans: Carrot and Raddish. 8

9 Q5) Food that have to be cooked. Ans: Rice and dhal. III Fill in the blanks 1) Food which is rich in most of the nutrients is sprouted grams. 2) Fruits and vegetables should be washed before eating. 3) Cooked food it kept for a long time may get spoil. 4) Food becomes soft and tasty when cooked. 5) Vegetables rich in fibers help in excretion and lower movement. IV Give Reasons 1) Clean the vessel regularly in which you store water. Ans: We may get diseases if we drink water from unclean vessel. 2) Do not eat spoil food. Ans: We may fall sick by eating spoil food. 3) Our meals should contain all types of food materials. Ans: They give us nutrients and help us healthy. States and properties of substance Q1) Mention three properties of a substance. Ans: 1) Some substances shine and some do not. 2) Some substances are heavy and some are light. 3) Some substances float and some sink. Q2) Mention three states of substances. Ans: Solid, liquid and gas are the three states of substances. Q3) Which substances have a definite shapes? Ans: Solid substances have a definite shape. Ex: brick, chalk etc. Q4) Which substance flows? Ans: Liquid substance flow. Ex: water, oil etc. 9

10 Q5) What happens to water when boiled? Ans: Water changes into water vapour when boiled. II Fill in the blanks 1) Chalk piece is a solid substance. 2) Kerosene is a liquid substance. 3) Air is gaseous substance. 4) Solids have a definite shape III Group the following into solid, liquid and gas. 1) Solid: ice cube, rock. 2) Liquid: milk, kerosene, honey. 3) Gas: Air, water vapor, smoke Properties of water Q1) Write three properties of water. Ans: 1) Water has weight. 2) Water does not have colour, smell or taste. 3) Water does not have shape of its own. Q2) What is the state of water? Ans: Water is in the liquid state. Q3) What state does water change when boiled? Ans: Water changes from liquid to gas, in the form of water vapour when boiled. Q4) What is the state of water when it is frozen? Ans: Water changes from liquid to solid, in the form of ice when it is frozen. Q5) What is water cycle? Ans: Water from the earth evaporates, forms clouds, clouds cool forming water drops which returns to the earth as rain or snow. This is called water cycle. 10

11 II III Bay true or false. 1) Water flows from higher level to lower level True 2) Water has a definite shape - False 3) We need water to live True. 4) Half of the earth is covered with water. So it is not necessary to save water False. Fill in the blanks 1) Water flows from higher level to lower level 2) Water doesn t have definite shape. 3) Water found on earth is mostly in the liquid state. 4) Water covers ¾ th part of the earth. 11