SSC (English Medium) ८ वीं कक्षा - Maharashtra State Board Question Bank Solutions for General Science

Matter that contain two or more constituent substances is called ______.

Plants synthesize glucose in sunlight with the help of chlorophyll from carbon dioxide and water and give away oxygen. identify the four compounds in this process and name their types.

Give two examples.

Organic compound

Give two examples.

Complex compound

Give two examples.

Inorganic compound

What is done to prevent corrosion of metals?

What are the adverse effects of corrosion?

Complete the following table.

The density of metal is 10.8 × 10³ kg/m³. Find the relative density of the metal.

Volume of an object is 20 cm³ and the mass in 50 g. Density of water is 1 g cm^-3. Will the object float on water or sink in Water?

The volume of a plastic covered sealed box is 350 cm³ and the box has a mass 500 g. Will the box float on water or sink in water? what will be the mass of water displaced by the box? 

Matter is classified into the types of mixture, compound and element by applying the criterion ______.

Milk is an example of a type of matter called ______.

Seawater tastes salty due to the dissolved salt. the salinity (the proportion of salts in water) of some water bodies Lonar lake - 7.9 %, Pacific Ocean 3.5%, Mediterranean sea - 3.8%, Dead sea - 33.7%. Explain two characteristics of the mixture from the above information.

Give two examples.

Homogeneous mixture

Write scientific reason.

Lemon sherbet has a sweet, sour and salty taste, and it can be poured into a glass.

Write scientific reason.

Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.

Identify A, B, and C from the above diagrams and give their functions.

Write scientific reason.

Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.

Explain with reasons.

Blood donation is considered to be superior of all donations.