Science - Class 2

Chapter - 1

Our Surroundings

 What are man-made things? Write five example.

Things that are made by man are called man-made things. 

 Ex:-  house  

          pen 

          car

          bike 

          computer 

What are natural things? Write five examples.

Things that are made by nature are called natural things. 

   Ex:- sun

          cloud 

          tree 

          mountain 

          man

What are living things? Write five examples.

Things which have lives are called living things.

   Ex:- cow

           dolphin 

           tree

          dog

          fish

Write five examples of non-living things that are made by man. 

Ans:- pencil, gun, shoes, watch, building 

Write five examples of non-living things that are made by nature.

Ans:- star, sun, moon, lake, coal

Write five different between living things and non-living things. 

The five difference between living things and non-living things are. 

1- Living things need food and water but Non-living things do not need food and water.

2- Living things need air but Non-living things do not need air. 

3- Living things grow but Non-living things do not grow. 

4- Living things move, feel and respond but Non-living things do not move, feel and respond.

5- Living things reproduce but Non-living things do not reproduce. 

Chapter 2

Plant world 

 What are water plants? Write five example.

Plants that grow in water are called water plants. They are also called aquatic plants.

Ex:- Lotus, Hydrilla, waterlily, water hyacinth, water chestnut, water stargrass  etc.

Why do climbers need support to grow?

The climbers need support to grow because they have weak stem.

What are seasonal plants? Write five example.

Plants which grow and flower in a particular season are called seasonal plants. Herbs are seasonal plants.

Ex:- Basil, ginger, paddy, wheat, gram

What are thorny plants? Write five examples. 

Ans:- Some plants have thorns on their stems and branches. They are called thorny plants.

Ex:- Rose, Prickly pear , Cactus, lemon, babool

What are Non-green plants?

Plants which do not have chlorophyll are called Non-green plants.

Ex:- Mushroom, moulds etc.

 

Chapter 3

Plants World

How do green plants make their food?

 Green plants make their food by a process called photosynthesis. they make their food with the help of sunlight, water, air, minerals and chlorophyll.

 

How do human beings get their food?

Human beings get their food from plants and animals.

 

Write five plants whose stems are eaten .

Ans:- sugarcane, ginger, potato, garlic, celery

Write five plants whose roots are eaten.

Ans:- beetroot, carrot, turnip, radish, cassava

 Write five plants whose leaves are eaten.

Ans:- cabbage, spinach, lettuce, mint, tulsi

Write three plants whose flowers are eaten?

Ans:- cauliflower, banana flower, broccoli

Write five vegetables plant whose fruits are eaten.

Ans- cucumber, tomato, pumpkin, brinjal, lady's finger

Write five plants whose seeds are eaten.

Ans- maize, wheat, rice, peas, moong dal

Write five beverages which we get from plant.

Ans:- tea, coffee, hot chocolate, mango juice, orange squash

Write five seeds that give us cooking oil.

Ans:-mustard, coconut, sesame( सीसमे - तिल ), sunflower , soyabean

Write two fibres that we get from plants.

Ans:-cotton, jute

Write five spices which we get from plants.

Ans:-red chilli, turmeric, black pepper, cloves,cardamom

Write five plants which give us medicines.

Ans:- tulsi, amla, tea, ginger, neem 

Write two fruits that are use as vegetables.

Ans:- tomato and cucumber

Which is the only food that does not spoil?

Ans:- Honey is the only food that does not spoil.

Write five uses of plants.

Ans:- The five uses of plants are

1- plants give us many food items.

2- Plants purify the air.

3- Plants give us medicines.

4- Plants give us wood, rubber, paper and gum.

5- Plants give us fibres.

Chapter4

Parts of plant

How many parts of plant? name them.

 There are eight main parts of plant.

1- root

2- stem

3- branch

4- leaves

5- buds

6- flowers

7- fruits

8- seeds

What is root?

Ans:- The part of the plant that fixes the plant to the ground is called root. It grows inside the soil. It takes water and minerals from the soil.

How many types of root?

Ans:- There are two types of root.

1- tap root

2- fibrous root

Write two example of tap root.

Ans:- carrot, radish

Write two example of fibrous root.

Ans:- rice and wheat

 What is stem?

Ans:- The part of the plant that found just above the soil is called stem. It carries food and water to all parts of the plant . It holds the plant upright.

Who bear leaves?

Ans:- Branches bear leaves.

Write two functions of leaves.

Ans:-  Leaves make food for the plant. leaves help the plants to breathe.  

 

 Chapter 4

Animal World

 

  1-What are Wild animals?

Ans- Animals that live in jungle are called wild animals

Ex:- elephant, deer, tiger, lion etc.

2- Which is the biggest animal on earth?

Ans:- Whale

3- What are land animals?

Ana:- Those animals that live on land are called land animals.

Ex- cow, tiger, deer, buffalo

4- What are water animals?

Ans:-Those animals that live in water are called water animals.

Ex:- shark, octopus, whale, dolphin, fish, crocodile etc.

5- What are arial animals?

Ans:- Animals that fly in air are called arial animals.

Ex:- birds, dragonfly, butterfly, bat etc.

6:- What are amphibians?

Ans:- Animals that live both on land and in water are called amphibians.

Ex:- frog, hippopotamus, penguin.

7:- What are herbivores?

Ans:- Animals that eat only plants are called herbivores.

Ex:- cow, goat, giraffee etc.. 

8:- What are carnivores?

Ans:- Animals that eat only flesh of other animals are called carnivores.

Ex:- tiger, shark, lion etc..

9:- What are omnivores?

Ans:- Animals that eat both plants and flesh of other animals are called omnivores.

Ex:- bear, crow, man, dog etc..

10:- What are scavengers?

Ans:- Animals that eat the flesh of other dead animals are called scavengers.

Ex:- vulture, hyenas, etc..

11:- What are insectivorous?

Ans:- Animals that eat insects are called insectivorous.

Ex:- house lizard, frog etc.

11:- What are arboreal animals?

Ans:- Those animals that spend most of their time on trees are called arboreal animals.

Ex:- monkey, squirrel, chameleon

 

 

         Chapter 5

Animal World/ Domestic animal

 

1:- What are farm animals?

Ans:- Animals that help us in farm and give us food are called farm animals.

Ex:- ox, cow, hen, duck, buffalo etc..

2:- What are pet animals?

Ans:- Animals that live with us in our home are called pet animals.

Ex:- Dog, cat, rabbit, parrot etc..

3:- What are domestic animals?

Ans:- Animals that are domesticated in farm are called domestic animals.

Ex:- horse, cow, buffalo etc..

4:- What are milch animals?

Ans:- Animals that give us milk are called milch animals.

Ex:- cow, goat, buffalo etc..

5:- Write five animals that give us meet.

Ans:- Goat, Sheep, Pig, Hen and Duck

6:- Write two animals that give us eggs.

Ans:- Hen and Duck

7:- Who gives us honey?

Ans:- Honey bees give us honey.

8:- Which animals are known as beasts of burden?

Ans:- Animals that carry loads for us and help us in doing hard work are called beasts of burden.

Ex:- bullock, elephant, donkey etc...

9:-Write two animals that give us leather.

Ans:- ox, buffalo

 10:- Who gives us silk?

Ans:- Silkworm gives us silk.

11:- Who gives us wool?

Ans:- Ship gives us wool.

12:- Write two animals that give us company.

Ans:- Dog, Parrot

13:- Write two animals that pull our carts.

Ans:- bullock, horse

 

Air,  (Chapter 6)

 

 

 1:- What is air?

Ans:- Air is a mixture of many gases and particles. We can not see air but feel it.

2:- How clouds are formed?

Ans:- Clouds are formed from the water vapour that is present in the air.

3:- Name three things which make the air impure

Ans:- Dust, smoke and germs make the air impure.

4:- Which air do we breathe in?

Ans:- We breathe in fresh and clean air.

5:- Who make the air fresh and clean?

Ans:- Trees and plants make the air fresh and clean.

6:- What is wind?

Ans:- Moving air is called wind.

7:- What is wind vane?

Ans:- Wind vane is a device that is used to find the direction of wind.

8:- What is breeze?

Ans:- slow moving air is called breeze.

9:- What is storm?

Ans:- Fast moving air is called storm.

10:- What is gail?

Ans:- Very fast moving air is called gail.

 

water  (Chapter 7)

 

 

 1:-Write five natural sources of water.

Ans:- The five natural sources of water are rain water, ponds, lakes, streams and rivers.

2:- Who help us to draw ground water?

Ans:- wells and tubewells help us to draw underground water 

3:- Write three agents that make the water dirty and unsafe for drinking.

Ans:- Washing clothes,Garbage, bathing make the water dirty and unsafe for drinking.

4:-Write two agents that make the water pure and drinkable.

Ans:- Boiling and water filters make the water pure and drinkable.

5:- Write two ways which help us to save clean water.

Ans:- The two ways which help us to save clean water are

1- Tap should not be kept running while brushing.

2- Collect rain water for watering plants.  

6:- How many states of water? Name them.

Ans:- There are three states of water.

1-solid

2-liquid

3-gas

7:- Who is the solid state of water?

Ans:- Ice is the solid state of water.

8:- Who is the liquid state of water?

Ans:- Water is the liquid state of water.

9:- Who is the gaseous state of water?

Ans:- Water vapour is the gaseous state of water. 

Chapter - 8

Our Univers

 

What is sun?

Sun is a huge hot ball of gases. It is a gaseous star made of fire.

 

Write five uses of sun?

The five uses  of sun are

1- Sun gives us heat and light.

2- Sun helps in drying clothes.

3- Sun helps the plants in preparing food.

4- Sun helps in riping fruits.

5- Sun helps the weather to change.

What is earth? 

Earth is a planet that revolves around the sun. It is the only planet where life exist.

Write three lines about the earth.

Earth is the only planet where life exists.

Earth is round in shape.

70% of earth is covered by water.

What is moon?

Moon is a natural satellite of earth that revolves around the earth.

 

Write four lines about moon.

Moon is round.

Moon is smaller than earth.

Moon revolves around the earth.

Moon shines because of the light of sun.

There is no life on moon.

Who was the first man to step on the moon?

Neil Armstrong was the first man to step on the moon.

What is light?

Light is a form of energy that makes everything visible.

 

 What is shadow?

A shadow is formed when light can not pass through an object.

Chapter - 9

Bones and Muscles

1- What are muscles?

Ans:- Muscles are organs that that allow the body parts to move.

2- What are bones?

Ans:- The hardest part of the body that give shape to the body are called bones.

3- What is skin?

Ans:- The upper most part of the body that covers the muscles and bones is called skin.

4- How many bones are there in our body?

Ans:- There are 206 bones in our body.

5- How many muscles are there in our body?

Ans:- There are more than 600 muscles in our body. 

6- Who give shape and support to the body?

Ans:- Bones and muscles give shape and support to the body.

7- Who help the bones to move?

Ans:- Muscles help the bones to move.

8- Who can we make our bones and muscles strong?

Ans:-We can make our bones and muscles strong by doing exercise daily.

Chapter - 10

Our Food

1- Why do we need food?

Ans:- We need food to grow and keeps our body healthy. It also gives us energy to work and play.

 

2- How many types of food?

Ans:- There are three types of food.

1- Energy giving food

2- Body building food

3- Protective food

3- What are energy giving food?Write five example.

Ans:- Those food items that give us energy is called energy giving food.

Ex:- potato, rice, butter, sugar, ghee etc. 

4- What are body building food?Write five example.

Ans:- Those food items that help our body to grow are called body building food.

Ex:- milk, dal, chapati, egg, meat etc.

5- What are body building food?Write example.

Ans:- Those food items that protect us from diseases are called body building food.

Ex:- fruits, vegetables etc. 

Chapter - 11

House

 

1- Why do we need a house?

Ans:- We need a house to live in. It also protects us from heat, cold, rain, thieves, enemies and wild animals.

2- What are pucca houses?Write example.

Ans:- Houses that are made up of bricks, cements, steel bars and granite are called pucca houses

Ex:- bungalow, apartment etc.

3- What are kutcha houses?Write example.

Ans:- Houses that are made up of mud, straw, wood, and bamboos are called kutcha houses

Ex:- hut

4- What is igloo?

Ans:- Igloo is a type of house that is made up of ice.

5- Who live in igloo?

Ans:-Eskimos live in igloo.

6- What is tent?

Ans:- Tent is a type of house that is made up of clothes. It is a temporary house.

7- What is caravan?

Ans:- Caravan is a type of house that is made on wheels.It moves from one place to another.

8- What is house boat?

Ans:- A house that is made on boat is called house boat.

9- How many types of roof?

Ans:- There are two types of roof.

1- flat roof

2- sloping roof

10- Write four features of good house.

Ans:- The four features of good house are

1- A good house has many windows for air and sunlight to let in.

2- A good house has trees nearby for fresh air.

3-  A good house has clean environment both inside and outside.

4- We should keep our house neat and clean.

Chapter - 12

Clothes

 

1- Why do we need clothes?

Ans:- We need clothes to wear. They protect us from heat, cold and rain. They also make us smart and cultured.  

2- When do we wear cotton clothes?

Ans:- We wear cotton clothes in summer.

3- Why do we wear cotton clothes in summer?

Ans:- We wear cotton clothes in summer because cotton clothes keep us cool in summer.

4- When do we wear woollen clothes?

Ans:- We wear woollen clothes in winter.

5- Why do we wear woollen clothes in winter?

Ans:- We wear woollen clothes in winter because woollen clothes keep us warm in winter.

6- When do we wear rain coat?

Ans:- We wear rain coat in rainy season.

7- Why do we wear rain coat in rainy season?

Ans:- We wear rain coat in rainy season because rain coat keep us dry in rainy season.

Chapter - 13

Safety rules and first aid

 

1- Why should we follow safety rules?

Ans:- We should follow safety rules to safeguard our life from accident or any serious injuries.

2-Write five safety rules that we should follow on the road?

Ans:-The five safety rules that we should must follow on the road are

1- Always walk on the foot path.

2- Cross the road only at zebra crossing.

3- Do not run or play on the road.

4- To cross the road, wait for the traffic to stop.

5- Always follow traffic lights.

3- Write five safety rules that we should follow in the moving vehicle?

Ans:-The five safety rules that we should must follow in the moving vehicle are 

1- Do not get in or get off a moving vehicle.

2- Do not put your arm or head out of a moving vehicle.

3- Always make a queue while waiting for the vehicle.

4- Do not push each other while getting into the vehicle.

5- Do not disturb the driver while driving. 

4- Write five safety rules that we should follow at home?

Ans:-The five safety rules that we should follow at home are  

1- Do not play with electric wires, switches and plugs.

2- Do not play with sharp objects like knife, scissors etc.

3- Do not leave your toys on the floor after playing.

4- Always climb up or down the stairs slowly.

5- Do not play with match stick.

5- Write four safety rules that we should follow in the playground?

Ans:-The four safety rules that we should follow in the playground are   

1- Always play in the playground.

2- Never play on the road.

3- Do not push each other while playing.

4- Always follow the rules of the game.

6- What is first - aid ?

Ans:- First-aid is a treatment which is provided immediately to someone before the doctor came. 

 

Chapter - 14

Rocks and Minerals

 

1- How soil is formed ?

Ans:- Soil is formed by breaking down of rocks due to wind , water  and rain. 

2- What are rocks ?

Ans:-Rocks are hard materials which found under the soil and in the form of mountains.

3 - How many types of rocks ? Name them.

Ans:-There are seven types of rocks.

1- Marble

2- Granite

3- Graphite

4- Slate

5- Limestone

6- Sandstone

7- Coal

3 - Write three lines about marbles.

Ans:- 

1- Marble is a hard rock. 

2- It is found in white, grey, black or pink in colour.

3- It is used for making buildings and statues.

3 - Write a building that is made of white marbles.

Ans:- Tajmahal

4 - Write three lines about Granite.

Ans:- 

1- Granite is a hard rock

2- It is colourful and have many textures.

3- It is used for making buildings and statues.

4 - Write three lines about graphite.

Ans:- 

1- Graphite is less hard and smooth rocks.

2- It is dark gray in colour.

3- It is used to making lead of pencils.

 

5 - Write three lines about Slate.

Ans:- 

1- Slate is less hard and smooth rocks.

2- It is dark gray in colour.

3- It is used to making slate and blackboard.

6 - Write four lines about limestone.

Ans:- 

1- limestone is a soft stone.

2- It is white and light brown in colour.

3- It is used for making cement and concrete.

4- White limestone is used to colour building.

7 - Write four lines about sandstone.

Ans:- 

1- Sandstone is a soft stone.

2- It is red and brownish yellow in colour.

3- It is made up of sand.

4- Red fort is made up of red sandstone.

8 - Write four lines about coal.

Ans:- 

1- Coal is a soft stone.

2- It is black in colour.

3- It is found inside the earth.

4- It is used in cooking and in factory.

8 - What are minerals? give example.

Ans:- Those precious natural substance that we can get from under the earth are called minerals. 

Ex:- iron, copper, diamond, aluminium, gold, silver etc. 

Chapter- 15

 Weather and Season

 

1:- What is weather?

Ans:- The weather is the condition of the air of a place at a particular time.

2:- How many types of weather?

Ans:- There are six types of weather.

1- sunny

2- cloudy

3- windy

4- rainy

5- foggy

6- cold

3:- What is season?

Ans:- When the same weather  continuous for a period of time. It is called a season.

4:- How many main season in India?

Ans:- There are three main season in India.

1- Summer season

2- Rainy season

3- Winter Season

5:- Write ten lines on summer season.

Ans:- 

Summer is the hottest season.

It is very sunny season.

The hot wind blows in summer season.

We sweat a lot in summer season.

We enjoy cold drink and ice cream in summer season.

We drink a lot of water in summer season.

We eat fruits like mango, litchi and watermelon in summer season.

We use cooler and air conditioners in summer season.

We wear cotton clothes in summer season. 

In summer season days are longer than nights. 

6:- Write five lines on rainy season.

Ans:- 

The rainy season is also called monsoon.

It rains a lot during the rainy season.

We wear rain coat and umbrella in rainy season.

We see the rainbow in the sky during the rainy season.

Rain is good for us.

7:- Write ten lines on winter season.

Ans:-

Winter is the coldest season.

December, January and February are winter months

The cold wind blows in winter season.

We like to play in sun in winter season.

We enjoy warm milk and hot soup in winter season.

We use heater to keep us warm in winter season.

We use blanket to keep us warm in winter season.

We eat fruits like apple, papaya and pomegranate in winter season.

We wear woollen clothes in winter season. 

In winter season nights are longer than days. 

We use heater to keep us warm in winter season. 

8:- Which season is not very hot and not very cold?

Ans:-  Spring season

9:- In which season flowers are bloom?

Ans:- Spring season 

10:- In which season trees shed their leaves?

Ans:- Autumn season