Science 'n' Us - 1.pdf - School Books Publishers India

Science'n'UsA COMPLETE SOLUTION OF TEXT-BOOKS1

1.Science 'n' Us - 1KINDS OF PLANTSExerciseA. Write :1. A plant that has branches : banyan2. A plant that does not have branches : banana3. A creeper : pumpkin4. A shrub : roseB. Put the (3) mark in front of the right statement and (7) in front of thewrong statement :1. The roots of plants go deep inside the soil. 32. Climbers cannot stand on their own. 33. Money plant is a shrub. 74. Cactus grows in the watery areas. 7C. Identify the following leaves :mango lotus bananaFlowchartFill up the boxes to complete the flowchart:Types of Plantsbigsmalltreesherbs shrubs climbers creepersLet us DrawDraw a beautiful tree in the space given here : (See space in text-book)Ans. Do yourself.Fun Time Activity1. Collect the leaves of any ten different plants around you and paste themin your scrapbook.Ans. Do yourself.2. Collect any five types of leaves. Paint their back. Place them on a whitesheet. Gently pick up the leaf and make beautiful patterns.Ans. Do yourself.Horizon Press 2Science 'n' Us - 1 to 5

2.LIFE OF A PLANTExerciseA. Write :1. Parts of a plant :(a) roots (b) stem (c) flowers (d) leaves (e) fruits2. Two fruits having one seed :(a) mango(b) peach3. Two fruits having many seeds :(a) watermelon(b) papaya4. Four things that a seed needs to grow into a plant :(a) soil (b) water (c) air (d) warmthB. Choose the correct word from side box and fill in the blanks :1. Watermelon and papaya have many seeds. seeds2. There are seeds inside the fruit. few3. A plant grows out of a seed. many4. The seed is sown into the soil . plant5. Apple and orange have few seeds inside them. soilC. Given below are the pictures of some fruits. Write one or many againstthem according to the number of seeds they have :one many many oneFlowchartFill up the boxes to complete the flowchart :Parts of a Plantleavesroots stem fruitsflowersone seed few seeds many seedsLet us DrawDraw diagrams to show main parts of the plant in the space given here:(See space in text-book)Ans. Do yourself.Fun Time Activity1. Take a handful of grams and keep them soaked in water overnight. Inthe morning, wrap them in a wet cloth and put them on a table. OpenHorizon Press 3Science 'n' Us - 1 to 5

and observe them after a day. Tell about this experiment to your classteacher.Ans. Do yourself.2. Complete the crossword using the pictures as clues :OM A N G ORA P P L EPR A N G ES3.PLANTS AND OUR FOODExerciseA. Write :1. Three cereals :(a) wheat (b) rice (c) maize2. Three fruits :(a) apple (b) mango (c) orange3. Three pulses :(a) moong (b) urad (c) masoor4. Three vegetables :(a) brinjal (b) pumpkin (c) cabbage5. Three oil seeds :(a) mustard (b) olive (c) groundnutB. Choose the correct word from side box and fill in the blanks :1. Cereals give us energy to work and play. vegetables2. Most of the vegetables are cooked before eating. work3. Fruits protect us from diseases. sunflower4. Almond is a dry fruit. diseases5. Sunflower is an oil seed. dry fruitC. Match the following :ABcashewcerealarharfruitmilletpulsecabbagedry fruitpomegranate vegetableHorizon Press 4Science 'n' Us - 1 to 5

FlowchartFill up the boxes to complete the flowchart :Food from Plantscerealspulses fruits vegetables oil seeds dry fruitsLet us DrawDraw your favourite fruit and favourite vegetable in the space given here :(See space in text-book)Ans. Do yourself.Fun Time Activity1. Learn to make your own vegetable sandwich. Follow these steps :(i) Take 2 bread slices.(ii) Apply some butter on them (one side only).(iii) Cut slices of cucumber, tomato, onion and arrange them betweenthe buttered bread slice.(iv) Sprinkle some salt and green coriander on it.(v) Enjoy to eat a healthy vegetable sandwich.Ans. Do yourself.2. Complete the crossword using the pictures as clues :B RGI N J A LARLICM O N D SATES U G A R C A N EMultiple Choice Questions(Based on chapters 1, 2 and 3)Choose the right option :1. Very big plants are called :(a) creepers(b) shrubs(c) herbs(d) trees2. Lotus is a :(a) desert plant(b) tree(c) water plant 3 (d) creeper3. Most of the plants have green coloured leaves.(a) blue(b) black(c) white(d) green33Horizon Press 5Science 'n' Us - 1 to 5

4.4. Cereals give us :(a) growth(b) oil(c) energy 3(d) health5. Almond and walnut are :(a) spices(b) vegetables(c) fruits (d) dry fruits6. We get oil from mustard plant.(a) mustard 3(b) rose(c) wheat(d) sugar caneANIMALS AROUND USExerciseA. Write :1. Two domestic animals :(a) cow (b) buffalo2. Two wild animals :(a) lion (b) tiger3. Two birds :(a) parrot (b) pigeon4. Two insects :(a) butterfly (b) mosquito5. Two water animals :(a) fish (b) frogB. Circle the odd one in the group :1. lion, cat, tiger, bear2. crow, pigeon, fish, peacock3. ant, grasshopper, frog, bug4. horse, cow, hen, monkey5. parrot, crocodile, fish, tortoiseC. Choose the correct word from side box and fill in the blanks :1. We keep pet animals in our home. wild2. Wild animals live in jungles. birds3. Birds have two wings. six4. Birds have a beak and make nests on trees. pet5. Most insects have six legs. nestsD. Write D for domestic, W for wild and P for pet animals :3D D PHorizon Press 6Science 'n' Us - 1 to 5

W W DFlowchartFill up the boxes to complete the flowchart :Animalsbigsmallelephant camel lionrat rabbit catLet us DrawDraw a butterfly or a peacock in the space given here :(See space in text-book)Ans. Do yourself.Fun Time Activity1. Visit a zoo along with your teacher and identify various animals keptthere.Ans. Do yourself.2. Collect two pictures of each type of animal, you have studied in thischapter and paste them in your scrapbook.Ans. Do yourself.5.BASIC NEEDS OF ANIMALS FOOD, SHELTERExerciseA. Write :1. Two herbivorous animals :(a) goat (b) rabbit2. Two carnivorous animals :(a) lion (b) tiger3. Two grain-eater animals :(a) rat(b) squirrel4. Two animals living under dense trees :(a) elephant (b) giraffe5. Two animals living in houses made by man :(a) horse (b) henHorizon Press 7Science 'n' Us - 1 to 5

B. Match the following columns :Animal House Habitdog den insectivorouscow hole grain-eaterspider kennel herbivorouslion shed carnivorousrat web omnivorousC. Choose the correct word from side box and fill in the blanks :1. A horse lives in a stable. honeycomb2. A sheep lives in a pen. fox3. A fox is omnivorous. vulture4. A vulture is carnivorous. pen5. A bumblebee makes a honeycomb to live. stableD. Put the (3) mark in front of the right statement and (7) in front of thewrong statement :1. Cows, oxen live in a shed. 32. Hens are grain-eaters. 33. Dogs live in a cave. 74. Tigers eat flesh. 35. Ants make honeycomb to live. 7FlowchartFill up the boxes to complete the flowchart :Food of Animalsplants and plants only flesh only grain insectsflesh bothrat hendog crow goat cowlizard froglion tigerLet us DrawDraw a beautiful diagram of a honeycomb in the space given here :(See space in text-book)Ans. Do yourself.Fun Time Activity1. Collect and paste the pictures of three herbivorous, three carnivorousand three omnivorous animals in your scrapbook.Ans. Do yourself.2. Collect materials like small twigs, threads, waste paper and bits of clothand make a bird's nest.Ans. Do yourself.3. Put two vessels on your roof having grains and water for birds, Observedifferent birds visiting your roof.Ans. Do yourself.Horizon Press 8Science 'n' Us - 1 to 5

6.ExerciseA. Say Yes or No :1. Can we see air? No2. Does air have any colour? No3. Can we live without air? No4. Does air occupy space? Yes5. Does air have weight? YesB. Choose the correct word from side box and fill in the blanks :1. We breathe air.2. Gently moving air is called breeze.3. We feel air only when it moves.4. Air helps in drying clothes.5. A occupies space and has weight.AIRbreezemovesweightairbreathespaceC. Put the (3) mark in front of the right statement and (7) in front of thewrong statement :1. We can taste and smell air. 72. Air cannot be seen. 33. Air occupies space. 34. We can live without air. 75. Air is filled in tyres and tubes. 3FlowchartFill up the boxes to complete the flowchart:Types of Airwind breeze stormLet us DrawDraw a beautiful kite in your notebook.Ans. Do yourself.Fun Time ActivitySolve the given crossword with the help of clues:Up to Down1. Air has weight.2. Fast blowing air is known as wind.6. Air does not have colour.Left to Right3. Air with a great speed is called storm.4. We cannot live without it.5. Air occupies space.7. All living things breathe air.2.W4.A I RND3.S1.WEIGHTO R MS P A C EOLOU7.B R E A T H E5. 6.Horizon Press 9Science 'n' Us - 1 to 5

7.WATERExerciseA. Write :1. Two uses of water to human beings :(a) for bathing(b) for cooking2. Two uses of water to animal :(a) for drinking(b) for bathing3. Two sources of water :(a) rain(b) riverB. Put the (3) mark in front of the right statement and (7) in front of thewrong statement :1. We need water to swim. 32. Animals do not need water. 73. Plants can survive without water. 74. Rainwater is filled in rivers, lakes and ponds. 35. Well is the main source of water. 7C. Say Yes or No :1. Is water necessary for all living beings? Yes2. Do we need water to sleep? No3. Can boats sail without water? No4. Is water precious? Yes5. Is rain the main source of water? YesFlowchartFill up the boxes to complete the flowchart :Source of Wateron earthunder earthriverpondlakewellhandpumpLet us DrawDraw a beautiful bucket in the space given here : (See space in text-book)Ans. Do yourself.Fun Time Activity1. Take two pots with plants. Water one of the plants everyday. Do notwater the other plant for three days. Observe both the plants. Whichplant is dying, and why?Ans. Do yourself.Horizon Press 10Science 'n' Us - 1 to 5

2. On a drawing sheet of light blue coloured paper draw a big drop ofwater and write :WATER IS PRECIOUSAns. Do yourself.8.Multiple Choice Questions(Based on chapters 4, 5, 6 and 7)Choose the right option :1. Most of the insects and flies have :(a) two legs(b) four legs(c) three legs(d) six legs2. A horse lives in a :(a) coop(b) pen(c) stable 3(d) kennel3. Which of the following is a grain-eater?(a) rat3(b) horse(c) dog(d) jackal4. Air:(a) has smell(b) has weight(c) has taste(d) has colour5. Water is necessary for :(a) breathing(b) dancing(c) bathing 3(d) shopping6. Air and water are needed for :(a) plants(b) human beings(c) animals(d) all living thingsWEATHER AND SEASONSExerciseA. Write :1. Two things are eat/drink during summers :(a) ice- cream (b) cold drink2. Two things we use in rainy season :(a) umbrella (b) raincoat3. Three seasons in our country:(a) winter (b) summer (c) rainyB. Put the (3) mark in front of the right statement and (7) in front of thewrong statement:1. Weather keeps on changing. 3333Horizon Press 11Science 'n' Us - 1 to 5

2. We wear woollen clothes in summers. 73. We like to have tea and coffee in summers. 74. We used raincoats and gumboots in winters. 75. The sky is covered with clouds during the rainy season. 3C. In which season are these things used? Write W for winters, S forsummers and R for rains :R S W S W RFlowchartFill up the boxes to complete the flowchart :Seasonssummerwinterrainyfans,coolersand ac'sice creamandcold drinkwoollenclothesteacoffeesoupsumbrellaraincoatgumbootsLet us DrawDraw pictures of a sun and an umbrella in your notebook.Ans. Do yourself.Fun Time ActivityCollect pictures of things you use in summer, winter and rainy seasons.Paste them in your scrapbook and write their names also.Ans. Do yourself.9.THE SKYExerciseA. Write one word to answer :1. Shape of the sun. round2. These cannot be counted. stars3. It has no light of its own. moon4. Night with whole moon. purnima5. It shines at day. sunHorizon Press 12Science 'n' Us - 1 to 5

B. Choose the correct word from side box and fill in the blanks :1. The sun shines during the day time. round2. Our earth is smaller than the sun. moon3. The moon does not have light of its own. stars4. The stars cannot be counted. earth5. The stars are round in shape. sunC. Put the (3) mark in front of the right statement and (7) in front of thewrong statement :1. The sun is very huge and very hot. 32. Sun rises in the east. 33. On 'Purnima' we see no moon in the sky. 74. The moon is bigger than the earth. 75. Some stars are even bigger than the sun. 3FlowchartFill up the boxes to complete the flowchart :Skydays timenight timesunmoonstarsLet us DrawDraw pictures of sun, moon and stars : (see space in text-book)Ans. Do yourself.Fun Time ActivityCut a silver paper in various shapes of the moon and paste them on a blackpestal sheet.Ans. Do yourself.10.OUR BODYExerciseA. Write one word to answer :1. They help us to see. eyes2. It help us to taste. tongue3. They help us to chew food. teeth4. It is the top part of our body. head5. It covers our body parts. skinHorizon Press 13Science 'n' Us - 1 to 5

B. Choose the correct word from side box and fill in the blanks :1. Nails are present on fingers tips and toes tips. height2. The neck joins the head to the trunk. tears3. Our eyes shed tears when we are sad. trunk4. Tongue and teeth are safe behind our lips. nails5. Our body grows in weight and height. weightlipsFlowchartFill up the boxes to complete the flowcharts :(a)Parts of Our Bodyheadneck trunk armslegs(b)Sense Organseyesears nose tongueskinLet us DrawDraw a face showing five sense organs in the space given here :(See space in text-book)Ans. Do yourself.Fun Time ActivityShow the number of these body parts in the pictograph. You can draw circleor paste bindis. One has been done for you:2 2 1 2 2 10 10 1 1No.ofPartsEyes Ears Nose Legs Hands Fingers Toes Mouth TongueMultiple Choice Questions(Based on chapters 8, 9 and 10)Choose the right option :1. People use raincoats and gumboots to save themselves from :(a) heat(b) cold(c) rains 3(d) windsHorizon Press 14Science 'n' Us - 1 to 5

2. Weather changes :(a) after one day(c) after one year3. Moon :(a) is hot(c) has its own light4. Stars :(a) shine at day time(c) are round in shape 35. It joins our head to our trunk :(a) neck3(c) elbow6. Skin help us to :(a) see things(c) taste things11.(b) after one month(d) everytime and everyday(b) changes its shape daily(d) is bigger than earth(b) can be counted(d) are fixed in sky(b) hair(d) ankle(b) hear sounds(d) feel things333OUR BASIC NEEDSExerciseA. Write one word to answer :1. Polluted air causes diseases2. Clothes worn in summers cotton3. Clothes worn in winters woollen4. It protects us from heat, cold, rain house5. They clean the air treesB. Choose the correct word from side box and fill in the blanks :1. We need air to breathe. polluted2. Polluted water should not be used for drinking woollen3. Food develops our body and protects our health. air4. Woollen clothes keep our body warm. health5. A good house should be open and ventilated. housefoodC. Put the (3) mark in front of the right statement and (7) in front of thewrong statement :1. Plants and trees pollute the air. 72. In the rainy season, water should be boiled before drinking. 33. Food develops our body. 34. We wear clothes according to our choice. 75. A house keeps us safe. 3Horizon Press 15Science 'n' Us - 1 to 5

FlowchartFill up the blanks to complete the flowchart :Our NeedsairwaterclotheshousesfoodLet us DrawDraw a diagram of a beautiful house in your notebook.Ans. Do yourself.Fun Time Activity1. Write the name of the things you eat in your breakfast, lunch anddinner:BREAKFAST LUNCH DINNERAns. Do yourself.2. Paste pictures of different types of clothing on a chart paper and writetheir names. Also write the name of the season, in which you wear them.Ans. Do yourself.12.KEEPING HEALTHY AND FITExerciseA. Write:1. Two ways to keep clean :(a) Bath daily with clean water.(b) Brush our teeth everyday in the morning and night.2. Two good food habits :(a) We must take our meals at proper times.(b) We must drink plenty of water everyday.3. Two exercise good for our body :(a) Walking is a good exercise for our body.(b) Swimming is also a good exercise for our body.4. Two outdoor games :(a) Cricket is an outdoor game.(b) Hockey is also an outdoor game.Horizon Press 16Science 'n' Us - 1 to 5

B. Choose the correct word from side box and fill in the blanks :1. We must take a bath everyday to clean our body walking2. We must cover our face with handkerchief whenwe sneeze.sleeping3. Sleeping gives full rest to our body. stale4. Never eat stale food. handkerchief5. Walking is the best exercise. bathC. Say Yes or No :1. Is swimming a good exercise? Yes2. Should we wash our hands before and after every meal? Yes3. Should we sneeze at our friend's face? No4. Should we cut our nails with our teeth? No5. Is it good to sleep till late? NoFlowchartFill up the boxes to complete the flowchart :Good Healthcleanlinessregular exercisegood food habitsrest and sleepLet us DrawDraw a badminton racket and a shuttlecock in the space given here :(See space in text-book)Ans. Do yourself.Fun Time Activity1. Interview your five friends and ask them the soap, shampoo, toothpasteand talcum powder they use. Make a table of your findings.Ans. Do yourself.2. How many of your friends:*take sleep of 8 hours?*bath daily?*eat junk foods quite often?Make a table of your findings.Ans. Do yourself.*have fixed time for toilet?*play daily?Horizon Press 17Science 'n' Us - 1 to 5

13.THE RULES OF SAFETYExerciseA. Write one word to answer :1. Space made on roadside for walking. footpath2. Space made to cross the road. zebra-crossing3. Signal we should follow, on road. traffic lights4. The very first help given to a patient. first-aid5. The box that contains cotton, bandage, dettol, etc. first-aid boxB. Choose the correct word from side box and fill in the blanks :1. We should follow the rules of safety. queue2. Footpaths constructed on the roadside should be used forwalking.safety3. One should stand in queue while waiting for a bus. crackers4. Do not travel standing on the footboard of a moving bus. footpaths5. Do not go near burning fire crackers. footboardC. Put the (3) mark in front of the right statement and (7) in front of thewrong statement :1. Use zebra crossing while crossing the road. 32. Always swim alone in the pool. 73. Board on a moving bus. 74. Do not play near under construction buildings. 35. It is safe to play, with matchsticks. 7FlowchartFill up the boxes to complete the flowchart :Follow Safety Ruleson the roadwhile travellingat homeat schoolwhile playingLet us DrawDraw and colour a traffic signal in the space given here :(See space in text-book)Ans. Do yourself.Fun Time ActivityOn a full chart paper, write rules of safety. Put this chart on the bulletinboard of your class.Ans. Do yourself.Horizon Press 18Science 'n' Us - 1 to 5

Multiple Choice Questions(Based on chapters 11, 12 and 13)Choose the right option :1. Exercise makes our body :(a) ill(b) lazy(c) healthy3 (d) dirty2. Children need to sleep for 8 hours daily.(a) 4 (b) 12(c) 24 (d) 83. A good house should be :(a) small and dark(b) big and dirty(c) open and ventilated 3 (d) closed and cold4. A first-aid box should contain :(a) scale, pencil, etc(b) powder, comb, etc(c) spoon, fork, knife, etc (d) cotton, dettol, etc5. Our food should be clean and :(a) hot(b) cold(c) fresh3 (d) stale6. Do not play with :(a) football(b) matchsticks(c) toys(d) bat333Horizon Press 19Science 'n' Us - 1 to 5