SSLC (English Medium) Class 6 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Match the following:

Analogy:

H₂O: Water:: NaCl: ______.

What is the use of indicator?

Write some materials prepared by chemical changes.

______ is a natural indicator.

Arrange the following statements in correct sequence:

1. One side is water-loving and other water-hating molecules.
2. When you agitate the cloth, the dirt is surrounded by many molecules and taken away from the cloth.
3. The dirt surrounded by the detergent molecules floats in the water making it dirty.
4. Finally, the cloth is clean.
5. The detergent molecules have two sides.
6. Water hating goes and joins with dirt and oil in the cloth while the water-loving joins with the water molecules.

These are abiotic factors.

1. Sunlight
2. Bacteria
3. Air
4. Plants

From the earliest time ______ have been the staple food of India.

1. Rice
2. Millet
3. Oats
4. Pulses

The wealth of any country largely depends upon its ______.

Plants, based on their economic values and uses, may be broadly classified into ______ categories.

Analogy:

Protect from scurvy: Amla:: Bronchitis, expectorant: ______.

Define – Economic botany.

Give evidence for the fact that Rice, Wheat, and Millets were cultivated and utilized in the ancient days.

Classify plants on the basis of economic values and uses.

What will happen when we place magnets near cell phones, computers, and DVDs?

What is water?

What is saltwater?

The abiotic factors are the non-living parts such as sunlight, air, water, and minerals in the soil.

Questions based on Higher Order Thinking Skills:

There are three spheres A, B, C as shown below.
Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.

Now answer the following questions.

1. Find the ratio of masses of spheres A and B.
2. Find the ratio of volumes of spheres A and B. 
3. Find the ratio of masses of spheres A and C.

Define the term matter.