Science Class 3

Note:- This will be included in class performance test unit-1examination(2020 -2021)

Chapter 1 Living and nonliving things

A - Fill in the blanks 1 - Plants prepare their own food. 2 - The process of taking in and giving out air is called breathing. 3 - Reproduction means giving rise to young ones . 4 - Earth is the only planet where life exists. 5 - Plants breathe through stomata . 6 - We breathe in air through our nose . 7 - All living things increase in their size .

B - Give one word for the following 1 - Increase in size of living things. Growth 2 - Process of taking in and giving out air. Breathing 3 - Giving rise to young ones. Reproduction 4 - Small holes on the bodies of insects. Spiracles 5 - Planet on which we live. Earth 6 - Things which occur by nature. Natural things

C - Write true or false 1- Plants are living organisms. True

2- Rocks, clouds, Mountains are man-made. False

3- All living things make their own food. False

4- Most plants reproduce mainly through seeds. True

5- Leaves of touch me not open when it is touched. False

D - Short answers

1- What is breathing?

Ans- The process of taking in and giving out air is called breathing.

2- What is reproduction?

Ans- The process of giving rise to young ones is known as reproduction.

3- Water living things?

Ans- All living things are able to grow, feed, reproduce, get rid of waste,

breath, respond to change and move.

5 - Answer the following questions . 1- How do animals reproduce?

Ans- Some organisms reproduce by laying eggs and some organisms give

birth to young ones.

2- Why do animals move?

Ans- Animals move from one place to another in search of food and

shelter.

3- Why all mushrooms cannot be eaten?

Ans- All mushrooms cannot be eaten as they contain some poisonous

compounds.

4- Give five features of living things.

Ans- The five features of living things are-

1- Living things grow.

2- They need food.

3- Living things breathe.

4- Living things reproduce.

5- Living things move on its own.

5- Give two ways in which plants reproduce.

Ans- The two ways in which plants reproduce are-

1- Most plants grow from seeds and

2- Few plants grow from the parts of other plants.

Diagram - one example of living thing and one example of non living thing.

Tree

Living Thing

House

Non-Living Thing

Recap test 1 M.M 10

1- Answer the following questions. (2x2)

A- What is breathing?

B- Why do animals move?

2- Write true or false (2)

A- animals can move to different places.

B- living organisms do not grow.

3- Fill in the blanks. (2)

A- Most animals have for breathing.

B- Mushroom is a rich source of .

4- Unscramble the letters. (2)

A- OEEMMVTN

B- RRCDOUPEE