Subject: EVS Month: November Class: II A & B

AIR

Air is one of the natural resource from the environment.

All living things need air to live.

We cannot see or touch air but it is always around us.

We can feel air when it moves.

Trees make the air fresh and clean.

Air is made of different gases like oxygen, carbon-di-oxide and so on.

Moving air is called wind.

Air has weight.

Air has space.

Wind is classified based on its speed.

Breeze

Gale

Storm

Breeze:

Gently or slowly moving air is called breeze.

We feel pleasant with the breezing air.

Gale:

Wind blowing is fast and slightly strong is called as gale.

It can move the leaves and branches of trees.

Storm:

Strong wind along with rains or snows is called as storm.

Uses of air:

Air is needed for burning.

Wind helps to move the sail boat.

Humans, animals, plants need air to breathe.

Wind moves the fan of windmill.

It helps to dry wet clothes.

Air helps to feel cool under the fan.

Air helps to fly kites and balloons.

Footballs, tyre, pillows and swimming tubes are filled with air.

I) Fill in the blanks:

1. We cannot see air, we can only feel it.

2. We all need air to breathe.

3. Moving air is called wind.

4. Gentle air is called breeze.

5. Trees make the air fresh and clean.

II) Match it:

1. Wind - Gentle moving air (3)

2. Space - Moving air (1)

3. Breeze - Strong wind along with rain (4)

4. Storm - Empty area (5)

III) Answer the following Questions:

1. Why do we need air?

We need air to live.

2. What is air made up of?

Air is made up of different gases.

3. What is storm?

A strong wind along with rains which causes damage is called storm.

4. Write any 3 uses of air:

Air is needed

(i) For burning (ii) To dry wet clothes (iii) to fly kite and balloons

WATER

Water:

Water is one of the natural resource.

Humans, animals, plants need water to drink and live.

Water has no fixed shape.

Fish, Frog, whale, shark, seal, crab, Alligator are live in water.

Plants take water from the soil through their roots.

When we feel thirsty our body needs water.

Forms of water:

Solid:

Ice is the solid form of water.

When water temperature is very low then it freezes and ice is formed.

Water:

Liquid form of water is water.

Gas:

Steam or water vapour is the gas form of water.

Water is converted into steam when water is heated.

Cloud are formed by water vapour.

Sources of water:

River Lake Pond

Rain water Tap water Spring water

Tube – well Sea

Sea water:

Salt water contains high amount of salt.

We cannot drink sea water.

Uses of water:

We use water in many ways.

Drinking Cooking Bathing

Cleaning utensils Toilets Washing clothes

Transportation Swimming For agriculture

Storage of water:

Water should be stored in clean container. We should be drink boiled and

filtered water.

Earthen pot Water drum water tank

Fill in the blanks:

1. When we feel thirsty we drink water.

2. We get water from river and well.

3. We can make the water clean by boiling, filtering.

4. If the plants do not get the water, they will die.

5. Plants take the water through its roots.

6. Ice is the solid form of the water.

Match it:

1) Bathe -

2) Boating -

3) Fire engine -

4) Plant water -

Answer the following questions:

1. What do we do when we feel thirsty?

We drink more water when we feel thirsty.

2. Where do we get water from?

We get water from river, lake, well, tube-well.

3. Why do we need water?

We need water to drink, bathe, wash clothes and cooking food.

4. How do we clean water?

We clean water by boiling and filtering.

5. Classify the forms of water?

Water can be classified into 3 forms. There are

i) Solid ii) Liquid iii) Gas