SSC (English Medium) इयत्ता ९ वी - Maharashtra State Board Question Bank Solutions for Science and Technology

Write the steps in deducing the chemical formulae of the following compound.

Aluminium hydroxide

Take 5 examples from your surroundings and give an explanation based on Newton's laws of motion.

Write down the changes that will be seen in each instance and explain the reason behind them. 

Dilute H₂SO₄ was taken in an electrolytic cell and an electric current was passed through it.

Explain the following.

Methane is called marsh gas.

Explain what is meant by electrolysis of water. Write the electrode reactions and explain them. 

Discuss ‘Agritourism’ in the class and write a project on an agro-tourism centre nearby. Present it in the class in groups.

Write scientific reasons.

Biogas is an eco-friendly fuel.

Name the hormones of the following endocrine gland and their function.

Pituitary

Name the hormones of the following endocrine gland and their function. 

Thyroid

Name the hormones of the following endocrine gland and their function. 

Adrenal

Name the hormone of the following endocrine gland and its function. 

Thymus

Name the hormones of the following endocrine gland and their function. 

Testis

Name the hormones of the following endocrine gland and their function. 

Ovary

Draw and label the diagram.

Human endocrine glands

Explain chemical coordination in humans and give the names and functions of some hormones.

‘Rearing of sheep is a livestock’. Justify this statement.

Write a short note.

Agro-complementary business.

Give a scientific reason.

Even though the magnitudes of action force and reaction forces are equal and their directions are opposite, their effects do not get cancelled.

Give scientific reasons.

It is easier to stop a tennis ball as compared to a cricket ball when both are travelling with the same velocity.

Complete a sentence and explain it.

The working of a rocket depends on Newton's ______ law of motion.