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

We can cook rice on a tawa.

Cooking in a solar oven needs sunlight.

Name any three cooking methods.

Explain any four cooking methods.

See the given pictures and write down the state of each object. (Solid, Liquid, Gas)

_____	______	______	______	______
______	_______	______	______	______

Write the states of water.

Fill in the blank by rearranging the letter in the bracket.

During photosynthesis plants releases _________ (egxyno).

Fill in the blank by rearranging the letter in the bracket.

Pigment involved in the food synthesis is _________ (phllylochor).

Autotrophs use _____,______ and chlorophyll to prepare their own food.

Which one of the following is a primary producer?

During photosynthesis, ________ is produced and stored in the leaf.

Who am I?

My group is called colony. ______

Who am I?

Our home is nest. ______

Define echolocation.

Explain the three main body regions of insect.

Tick the object which gives out water vapour.

Air is a ____.

Who am I?

I am a mixture of gases.

______ of our environment means to protect all things found in nature.

We should conserve our natural resources and energy