Grade 2, Science Olympiad (CBSE) - Plants introduction 

Try free sample papers for Olympiads

Grade 2  |   Science  |   Plants introduction, Plants, Olympiad, CBSE, ICSE, Maths Olympiad, Science Olympiad, English Olympiad

An overview for living and non- living things

Living things

Some organisms possess life and are capable to eat, grow, respire, reproduce and utilise the energy accordingly. These organisms are able to respond to the external stimuli provided by the environment. 

Characteristics of living things:

• They can grow.
• They can move.
• They can breathe.
• They can give birth to their young ones.
• They need food and air to survive.
• They are sensitive to touch.
• They can excrete waste.

Non - Living things 

Some things are not capable of displaying the living characteristics. They are unable to grow, reproduce, respire, move and respond to the stimuli or evolve as per the external environment. 

Characteristics of non-living things:

• They cannot grow.
• They cannot move.
• They cannot breathe.
• They cannot give birth to their young ones.
• They don't need food and air to survive.
• They cannot excrete waste.

Plants characteristics

Plants play an important part in our life. They are living things like us. Without plants we cannot even think of survival on earth. Plants give us the oxygen we breathe, food that we eat, wood and several other things.

Different parts of plants

• Roots

Roots are lowest part in a plant's body that grow inside the soil surface. These help the plants to stay firm in the soil. It absorbs nutrition, water and minerals and make the plant to stay firm.

• Stem

Stem is a part that grows above the surface of the soil and holds leaf, flower and fruit. It gives strength and support to the upper part of a plant. 

• Flower

You may have noticed colorful part in the plants of various shapes, size and colours. These parts are called flowers. Flowers after the maturation are turned into fruits. 

• Leaves

The green coloured part in the plants with a tiny plate like appearance is called a leaf. Leaves are the kitchen of a plant as food is made in the leaves only. They are also of varying sizes, shapes and colours. 

• Fruits

The fleshy and edible part of a plant is called a fruit. Mango, Apple, Water-Melon, etc all are the fruits only

Following are some of the properties of plants:

1) Plants cannot move from one place to another but their parts show movements towards sunlight, warmth and support. e.g. sunflower turns towards the sun.  Climbers move towards support etc.

2) Sunlight, water, soil and air (carbon dioxide) are essential for plants.

3) Plants can exist in water as well. 

4) Plants are green in color due to the presence of a green color pigment called chlorophyll. Chlorophyll helps plants in absorbing the energy of sunlight during photosynthesis.

5) As blood flows in the body of humans, similarly sap flows in the plants.

6) The bark is the outermost layer of stem and roots of woody plants. It is like the skin of plants.

7) Plant roots absorb water and transfer it to other parts of the plant through the stem.

8) When a plant has excess water it releases some of the water through stomata. This process is called transpiration. Water is released from the underside of leaves and is converted into vapours. Transpiration is also called evaporation of water from plant leaves.

 Recommended watch

 Useful free youtube videos 

Get me the extra edge for Olympiads Exams