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

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

Buttermilk is an example of heterogeneous mixture.

A ______ mixture has no distinguishable boundary between its components.

Draw the structure of oxygen and sulphur atoms.

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

Group 17 elements are named as Halogens.

Statement: Elements in a group generally possess similar properties but elements along a period have different properties.

Reason: The difference in electronic configuration makes the element differ in their chemical properties along a period.

Give an example for each of the following statement.

A compound in which coordinate bond is formed.

1% solution of Iodoform is used as ______.

Mesoglea is present in ______.

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

Canal system is seen in coelenterates.

Match the following.

What is nematocyst?

Why coelenterates are called diploblastic animals?

Companion cells are closely associated with ______.

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

Phloem is made up of tracheids.

Stomach of human beings mainly digests ______.

Higher Order Thinking Skill

If pepsin is lacking in gastric juice, then which event in the stomach will be affected?

Deficiency diseases can be prevented by taking ______ diet.

Give reason for the following statement.

Deficiency of calcium in diet leads to poor skeletal growth

Bats are the only mammals that can fly.

How does a bat adapt itself to its habitat?