SSLC (English Medium) कक्षा ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

How are clouds and fogs formed?

According to you, which process of the water cycle is adversely affected by human activities?

Define standard unit.

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

The foundations of high-rise buildings are kept wide so that they may exert more pressure on the ground.

Define electric field.

The unit of magnetic flux density is ______.

The SI Unit of magnetic field induction is ______.

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

Fleming’s Left hand rule is also known as Dynamo rule.

State Fleming’s Left Hand Rule.

Define magnetic flux density.

______ has the same properties throughout the sample.

Which of the following are pure substances? Ice, Milk, Iron, Hydrochloric acid, Mercury, Brick and Water.

Elements in the modern periodic table are arranged in ______groups and______ periods.

Noble gases belong to______ group of the periodic table.

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

Lanthanides and actinides are kept at the bottom of the periodic table because they resemble each other but they do not resemble with any other group elements.

What are groups and periods in the modern periodic table?

State any five features of modern periodic table.

Apple contains malic acid. Orange contains ______.

Acids in plants and animals are organic acids. Whereas Acids in rocks and minerals are ______.

Sulphuric acid is called King of Chemicals. Why is it called so?