SSLC (English Medium) Class 8 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Match the following.

Write the name of any nitrogen fixing bacteria.

Name the bacteria used in the production of vinegar.

Write the four types of bacteria, based on their shape.

Write a short note on bacteria and its structure.

Mention the function of ‘Alveoli’.

Name the processes by which air enters and comes out of our lungs.

Discuss various types of movements seen in living organisms.

During menstruation, the progesterone level is _____

The male and the female gamete fuse together and form ______.

_______ usually occurs 14 days after ovulation.

State true or false. If false, correct the statement.

The release of ovum from the uterus is called ovulation.

During pregnancy, the corpus luteum continues to grow and produces large amount of estrogen and progesterone.

What is fertilization?

Explain Menarche.

Explain the process of pregnancy.

Briefly explain the concept of variation of atmospheric pressure.

The ENT doctor uses a ______.

______ mirrors magnify the object placed close to them.

The loudness of a sound depends on its pitch.