SSLC (English Medium) Class 10 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

How does a developing embryo get its nourishment inside the mother's body? 

Name the hormone responsible for the vigorous contractions of the uterine muscles.

LH is secreted by the posterior pituitary.

Describe rocket propulsion.

Which of the following statements is wrong about detergents?

Answer the following question using the data given below:

Assertion: Detergents are more effective cleansing agents than soaps in hard water.

Reason: Calcium and magnesium salts of detergents are water-soluble.

How do detergents cause water pollution? Suggest remedial measures to prevent this pollution?

Differentiate soaps and detergents.

Draw and label the structure of oxysomes.

______ separates nitrogenous waste from the blood in the rabbit.

Explain the male reproductive system of rabbits with a labelled diagram.

What is the need for contraception?

Surgical methods of contraception prevent gamete formation.

To project the rockets which of the following principle(s) is /(are) required?

State the universal law of gravitation and derive its mathematical expression.

Give the applications of universal law gravitation.

Magnification of a convex lens is ______.

What is co-efficient of apparant expansion?

Derive the ideal gas equation.

Answer the following question using the data given below:

• Assertion: Magnesium is used to protect steel from rusting.
• Reason: Magnesium is more reactive than iron.