Question

Q1. Fill in the blanks.
1. Galvanisation is a process used to prevent the rusting of
2. The day on which the sun reaches exactly overhead is called the
3. Mineral oil is. also known as
4.
in the toothpaste helps to prevent tooth decay.
5. Anything that takes up space and has mass is called
6. A man painted his main gate made up of iron to prevent it
from
7. 100 hertz is equal to hundred
in one second.
8. The function of the metal detector is based on
9. Soap nut and soap pod contains a chemical named
10. When a liquid is heated it will
11. Sound waves do not travel through
12. The properties of magnetic field was proposed by scientist​

Answer 1

Galvanisation is a process used to prevent the rusting of iron .

When a liquid is heated it will vapourise or evaporate

Sound waves do not travel through vaccum

man painted his main gate made up of iron to prevent it from rusting

Anything that takes up space and has mass is called Matter

Base substances in the toothpaste helps to prevent tooth decay.