Nutrition in Plants
Nutrition in Animals
- Different Ways of Taking Food
- The Digestive System in Human
- The Mouth and Buccal Cavity
- The Teeth and Its Structure
- The Salivary Glands
- The Food Pipe/Oesophagus
- The Stomach
- The Small Intestine
- Absorption of Food
- The Large Intestine
- Assimilation of Food
- Digestion in Grass-eating Animal
- Feeding and Digestion in Amoeba
Fibre to Fabric
Acids, Bases and Salts
Physical and Chemical Changes
Weather, Climate and Adaptations of Animals to Climate
Wind Storms and Cyclones
Respiration in Organisms
Transportation in Animals and Plants
Reproduction in Plants
Motion and Time
Electric Current and Its Effects
Water: A Precious Resource
Forests: Our Lifeline
Read the paragraph and answer the following questions.
I am a penguin. I live in polar region covered by snow. My abdomen is white. My skin is thick with a layer of fat underneath. My body is spindle-shaped. My wings are small. My toes are webbed. We live in flocks.
- Why is my skin white and thick and why is there a thick layer of fat underneath?
- Why do we live in flocks sticking close to each other?
- Which geographical region do I inhabit? Why?
- Which adaptations should you have to enable you to live permanently in the polar region? Why?
Who is lying?
- Cockroach – I have five legs.
- Hen – My toes are webbed.
- Cactus – My fleshy, green part is a leaf.
Read the following statement. Write a paragraph about adaptation with reference to the statement.
There is extreme heat in deserts.