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

World’s first general purpose computer is ______.

Fifth generation computer has ______ intelligence.

Match the following.

Differentiate hardware and software.

Heat is a kind of energy that flows from a hot body to a cold body.

Air pollution leading to acid rain is a

Plants convert carbon-di-oxide and water into starch. This is an example of ______ change.

Change of new moon to full moon is human made.

Analogy:

Photosynthesis : ______ change :: burning of coal : Human – made change

Analogy

78% of air: Does not support combustion:: _____: Supports combustion

Only ______ percent of natural water is available for human consumption.

What are the types of rainwater harvesting?

What is rainwater harvesting? Explain in a few sentences how it can be used in houses.

Soaps were originally made from ______.

The saponification of a fat or oil is done using _____ solution for hot process.

Water, coconut oil, and _______ are necessary for soap preparation.

Match the following

Arrange the following statements in correct sequence

1. Pour that solution into an empty matchbox, soap can be obtained after drying.
2. Take the necessary quantity of water in a jar.
3. Then add coconut oil drop by drop and stir it well.
4. Add concentrated sodium hydroxide in the jar and allow it to cool.
5. Try this soap to wash your hand kerchief.
6. Cover your work area with old newspaper.

What are the three main constituents of soap?

What are the two different types of molecules found in the soap?