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Living and Non - Living Things - Class 3 Science - New St. Mery English School


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Living and Non - Living Things - Class 3 Science - New St. Mery English School

Everything around us can be divided into two main groups – living things and non-living things. Living things, such as plants, animals, and humans, have life. They grow, breathe, move, eat food, and reproduce. On the other hand, non-living things like rocks, water, air, and toys do not have life. They do not grow, breathe, or need food.

Understanding the difference between living and non-living things helps children learn more about the world around them. It also helps them observe nature carefully and develop curiosity about how things work. In this lesson, we will explore the characteristics of living things and identify examples of both living and non-living things in our daily life in a simple and fun way.

Living and Non - Living Things - Class 3 Science - New St. Mery English School 

1:- What are living things ?

Ans:- The things that are alive are called living things.
Ex: - humans beings,  animal,  birds,  insects and plants 

2:- What are non living things?
Ans: - Things that are not alive are called non living thing things
Ex:-  stones,  rocks,  mountains and soil 

3:- Write six characteristics of living things .
 Ans: – the six characteristics of living things are
  • Living things move.
  • Living things breathe.                 
  • Living things need food and water for survival.
  • Living things grow.
  •  Living things feel.
  • Living things reproduce.
3:- Write five characteristics of Non - living things .
 Ans: – the five characteristics of Non - living things are
  • Non - Living Things do not have life.
  • Non - Living Things do not require food, water or air.               
  • Non - Living Things do not breathe.
  • Non - Living Things do not grow.
  • Non - Living Things do not move from one place to another.

4:- What locomotion
Ans:- movement of animals from one place to another place  is called locomotion

5:- What we call the movement of these living being?
 human , deer , kangaroo , rabbit , monkey , insects and bird.
Ans:- The movement of human is called walk.   
The movement of deer is called walk .
The movement of kangaroo is called hop. 
The movement of rabbit is called hop. 
The movement of monkey is called swing.
The movement of insect is called fiy and crawl. 
The movement of bird is called fiy
The movement of fish is called swim
The movement of snails, snake and earth worm is called crawl

6:- Write the name of a plant that turns their face towards the sun
Ans:-   sun flower

7:- Why do living things need food and water?
Ans:- Living  things need  food  and  water  to  live  and  to  get  energy  to  carry  out  different   work

8:- How do animals get there food
Ans:- Animals get there food directly or indirectly from plants. Cow, deer and sheep get food directly to the plant.  While lion and tiger get their food indirectly to the plants

9:- How does plant make their food
Ans:- plants make their food using sunlight, carbon dioxide, chlorophyll and water. this is called photo synthesis.

10:- By which organ  these  living beings  breathe ( cow, cat, dog, man, fish, insects, plant)
Ans:- Cow, cat, dog and man breathe through lungs.
Fish breathe through gills.
Insects breathe through spiracles present on their body.
Plant breathe through stomata

11:- How many sense organs we have to feel the objects around us ?
Ans:- We have five sense organs to feel the object around us. They are eyes, nose, tongue and skin

12:- What is reproduction ?
Ans:- All living beings reproduce other living beings of their own kind is called reproduction

13:- Write the process how these living beings reproduce their young ones. (human beings , animals , birds, plants)
Ans:- Human beings reproduce their young ones by giving birth.
Animals  reproduce their young ones by giving birth.
Birds reproduce their young ones by laying eggs.
Plants reproduce their young ones Through seeds and From plant parts .
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Weather And Season - Class 3 Science - New St. Mery English School


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 Weather And Season - Class 3 Science - New St. Mery English School

Weather and seasons are important parts of our daily life. Sometimes the day is hot, sometimes it is cold, and sometimes it rains. These changes in the air around us are called weather. When a particular type of weather continues for many months, it forms a season.

In this lesson, Class 3 students will learn about different types of weather such as sunny, rainy, windy, and cloudy days. They will also understand the main seasons of the year — summer, rainy, winter, spring, and autumn — and how each season is different. Children will discover how seasons affect the clothes we wear, the food we eat, and the activities we do.

Learning about weather and seasons helps students understand nature better and observe the changes happening around them every day.

Weather And Season - Class 3 Science - New St. Mery English School


What is Weather?

Ans:- The day to day conditions of  air  of a place keeps changing everyday. This condition of air is called weather.

Write the factors that affect the weather.

Ans:- The factors that affect the weather are sun, wind, clouds and water vapour in the air. 

How many types of weather?

Ans:- There are five types of weather.

1- Sunny day

2- Cloudy day

3- Rainy day

4- Windy day

5- Cold day

What is Sunny Day?

Ans:- In sunny day, The sun is bright. Sky is blue and the air is warm. The hottest time of the day is noon because the sun is directly overhead.

What is Cloudy Day?

Ans:- In cloudy day, The sky is covered with clouds. Cloudy day is not very hot.

What is Rainy day?

Ans:- In rainy day, The sky is covered with dark clouds. It rains very heavily in rainy day. It is cold and wet.

What is Windy day?

Ans:- In windy days the wind blows strongly. 

What is Cold day?

Ans:- In cold day, The sun is not bright and cold wind blows. 

What is Season?

Ans:- When the weather remains same for a few months, It is called season.

How many types of season? Name them.

Ans:- There are five types of season

1- Summer Season

2- Winter Season

3- Rainy season

4- Autumn Season

5- Spring Season

What is Summer Season?

Ans:- Summer is the hottest season of the year. It comes after spring season and before the rainy season. We wear light cotton clothes in this season. We eat ice-cream and drink cold drinks in this season.

What is Winter Season?

Ans:- Winter is the coldest season of the year. It comes after autumn and before spring. In this season, we wear woollen clothes to protect us from cold. In this season we enjoy hot drinks.

What is rainy season?

Ans:- The rainy season is the time of year when a place gets most of its rainfall. It is also called monsoon season. It comes after summer season and before winter season. We use umbrella and rain coat in rainy season.

What is autumn season?

Ans:- Autumn is the season that comes after summer and before winter. It is the time when the weather starts becoming cooler. It falls after the rainy season and before the winter season. During this season, trees shed their leaves.

What is spring season?

Ans:- Spring is the season that comes after winter and before summer. It is known as the season of new life and fresh beginnings. We see beautiful plants and blooming flowers in this season.

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Light, Sound and Force - Class 3 Science - New St. Mery English School


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Light, Sound and Force - Class 3 Science - New St. Mery English School

Light, Sound, and Force are three wonderful gifts of nature that help us understand the world around us. From seeing colorful objects, hearing sweet sounds, to pushing and pulling things—these three play an important role in our daily life.

Light helps us to see. Without light, everything would be dark. The Sun, candles, and electric bulbs are sources of light.
Sound helps us to communicate and enjoy music. We hear sounds when something vibrates.
Force is a push or a pull that makes objects move, stop, change shape, or change direction.

In this chapter, students will learn how light, sound, and force work, where they come from, and how they help us in everyday life. This lesson is designed in a fun and simple way so that Class 3 students can easily understand these basic science concepts and enjoy learning. 🌟

Light, Sound and Force - Class 3 Science - New St. Mery English School 

What is Light?

Ans:- Light is a form of energy that helps us see things.


How many types of object on the basis of Light?

Ans:- There are two types of object on the basis of Light.

1- Luminous object

2- Non-Luminous object


What are Luminous Objects?

Ans:- The objects that give us light are called Luminous Objects.

Ex:- sun, bulb, torch and candle etc


How many types of Luminous object?

Ans:- There are two types of luminous object.

1- Natural luminous object

2- Man-made luminous object


What are Natural Luminous objects?

Ans:- Objects that give out light by themselves and are not man-made are called natural luminous objects.

Ex:- sun, stars, fire, lightning, fireflies etc.


What are Man-made luminous objects?

Ans:- The luminous objects that are made by man are called Man-made luminous objects.

Ex:- bulb, torch and candle etc.


What are Non-Luminous object?

Ans:- Objects that cannot give out light by themselves are called non-luminous objects.

Ex:- book, table, chair, moon, ball etc.


What are transparent objects?

Ans:- Some objects that allow light to pass through them easily are called transparent objects.

Ex:- glass, water etc.


What are translucent objects?

Ans:- Objects through which only some light can pass are called translucent objects.

Ex:- Butter paper, frosted glass, thin cloth, oiled paper


What are opaque objects?

Ans:- Some objects that do not allow light to pass through them are called opaque objects.

Ex:- wood, stone etc.


What is shadow?

Ans:- A shadow is a dark patch formed when an object blocks the path of light. It is always formed on the opposite side to the source of light.


Write three conditions that is necessary for the formation of shadow.

Ans:- The three conditions that is necessary for the formation of shadow are

1- A light source

2- An opaque object

3- A surface such as wall, floor, table top etc.


Write three properties of shadow.

Ans:- The three properties of shadow are

1- The shape of shadow is similar to the shape of object

2- The size can be smaller or bigger than the object.

3- Shadow are always black in colour.


What is Sound?

Ans:- Sound is a form of energy that is produced by vibrations and travels through a medium like air, water, or solids as sound waves.

How many types of sound?

Ans:- There are two types of sound.

1- Pleasant sound

2- Unpleasant sound


What is Pleasant Sound?

Ans:- The sound which makes us feel good is called Pleasant Sound.

Ex:- Musical sounds, Chirping of the birds


What is Unpleasant sound?

Ans:- The sound which makes us uncomfortable is called unpleasant sound.

Ex:- Sound of a drill machine, bursting of loud fire crackers, The honking of vehicles


What is noise?

Ans:- The loud and unpleasant sound is called noise. Noise is harmful for our health.


What is Force?

Ans:- Force is a push or pull on an object. It can not be seen or touched. But you can feel it. You can also use it to do many things.


Write four effects of Force.

Ans:- The four effects of force are

1- A force can move an object.

2- It can change the shape of an object

3- It can slow down or stop a moving object.

4- It can change the direction of a moving object.



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Measurement - Class 3 Science - New St. Mery English School


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Measurement - Class 3 Science - New St. Mery English School 

Learn all about Measurement in this easy and child-friendly Class 3 Science explanation. This lesson covers what measurement is, why we need it, and the different units used to measure length, weight, and capacity. Students will also understand the difference between standard and non-standard units with simple examples. Perfect for CBSE Class 3 students, teachers, and parents looking for clear and helpful science notes.

Measurement - Class 3 Science - New St. Mery English School 

What is measurement ?

Measurement - Class 3 Science


Ans- Measurement is the way to know the number of size or quantity of anything.

What is unit?

Ans:- Unit is a physical quantity that is used to measure anything.
Ex:- length is measured by kilometer or meter
        Weight is measured by Kilogram or gram
        Capacity is measured by liter or milliliter
        Time is measured by hour, minute or second

How many types of units?

Ans:- There are two types of units.
           1- Non-standard units
           2- Standard units
 
What are Non-standard units?

Ans:- Those units that vary from person to person are called Non-standard units.
          Ex:- handspan, cubit, stride and footspan

What are Standard units?

Ans:- Those units that are used for accurate measurement are called standard units.
          Ex:- Standard units for length are Kilometre, Metre, Centimetre
                  Standard units for weight are Kilogram, gram
                  Standard units for capacity are litre, mililitre
                  Standard units for time are hour, minute, second

Which unit is used to measure very small length?

Ans- Millimetre

Which unit is used to measure long lenght such as distance?

Ans:- Kilometre

What is the SI unit of length?

Ans:- Metre

Write the name of instrument that is used to measure length.

Ans:- Scale and Measuring tape

Which unit is used to measure weight of lighter things?

Ans:- Gram

Which unit is used to measure weight of heavier things?

Ans:- Kilogram

What is the SI unit of weight?

Ans:- Kilogram

Write the name of instrument that is used to measure weight.

Ans:- Weighing balance and Electronic weighing balance

Which unit is used to measure the capacity of smaller containers?

Ans- Millilitre

Which unit is used to measure the capacity of large containers?

Ans- Litre

What is the SI unit of capacity?

Ans:- litre

Write the name of instrument that is used to measure capacity.

Ans:- measuring cup, measuring cylinder, measuring flask

How did people know the time in ancient time?

Ans:- People knew the time in ancient time by the position of the Sun.

What is the SI unit of time?

Ans:- Second