Tamil Nadu Primary School इयत्ता ४ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Write the name of any one of the leaf that is used as a food.

Write the parts of the leaf.

Mark any four parts and describe the parts of a leaf.

Write the waste management process in the correct order.

(Waste disposal, Waste collection and transportation, Waste separation, Waste recycling and composting)

Write any five non-recyclable items that you use or have seen in shop.

What is the first step in waste management?

Which is an example for non-biodegradable waste?

Picking up the waste is called _______.

________ is the first ‘R‛ in the Three R‛s.

________ is an example of reusing waste.

3R method reduces the amount of waste that goes to landfills.

What are the Three R‛s?

What is biodegradable waste?

Write the different steps in waste management.

How will you manage the household waste?

Tick the objects which has air in it.

What are the importance of air in our daily life?

______ is to take materials from things you throw away and make new products with them.

______ is using something repeated for the same or for another purpose.

Reuse is to make or useless.