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

A block of wood is opaque.

A clear window is opaque.

What is light sources?

Choose the odd one:

Tablets used to read books.

Pen drive is not a gadget.

What is the use of a pen drive?

What is a gadget?

What is the use of the portable music player?

Find the odd one.
sun, candle, torch, pen

Find the odd one.
glass bottle, exam pad, paper plate, wooden board

Dull materials reflect light.

Define reflection.

The ability to do work is ________.

What is the unit of energy?

Tick (✓) the appropriate one.

When you are sick, what kind of food your mother serves you?

We should avoid eating _______ food, 

Consuming too much oily food is bad for our health.

Write any two food items you should eat when you are sick?