SSC (Marathi Semi-English) ९ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Science and Technology

Identify the odd one out and justify.

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

50 ml water is added to 50 ml solution of copper sulphate.

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

Pieces of blue vitriol were heated in a test tube. On cooling, water was added to it.

Explain with suitable examples, the relationship between weather forecasting and disaster management.

Write the use.

Powder coating 

Write the use. 

Anodizing 

The chemical name of Teflon is ______.

Which diseases are caused by artificial food colours?

Write down properties of teflon. 

What type of colours will you use to celebrate ecofriendly Rang Panchami? Why?

Why has the use of methods like Teflon coating become more common?

Give a scientific explanation.

The particles of powder are given an electric charge while spraying them to form the powder coating.

Give a scientific explanation.

The aluminium article is used as an anode in the anodizing process.

Give a scientific explanation.

A certain type of ceramic tile is fixed on the outer layer of a space shuttle.

Write about artificial food colours, the substances used in them and their harmful effects.

Write the harmful effects.

Artificial dye

Write the harmful effects.

Artificial food colour

Write the harmful effects.

Deodorant 

Explain what you see in the following picture.

Complete a sentence and explain it.

When an object is in uniform circular motion, its ______ changes at every point.