2. Light bulb Telephone Television Radio Wheel Zero Computer fire Light bulb Telephone Television Radio Wheel Zero Computer fire

3. Thomas Elva Edison invented a light bulb which is needed by many people to light their house. Edison is the fourth most prolific inventor in history.

5. Television is invented by Dr. J.L. Baird. It’s a very good source of entertainment. All kind of channels come on television. Some of them are religious, sports, news, entertainment, cartoons, etc.

6. The invention of radio was done to entertain people. Do you know who invented it? Marconi was the one who invented it.

7. The invention of wheel was done by the ancient people it helped them with the potter’s wheel, carrying load etc.

8. Do you know who gave zero to the world? India yes, an Indian invented zero. He was Aryabhatta who invented zero. I wonder without zero what would the people have done? Without zero the numbers are just till 1 to 9.

9. A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem. It was invented by Ada Lovelace.

10. Fire was invented by early man. Although, he feared fire but he learned its various uses like- roasting meat. lighting the dark caves. scaring animals. it kept them warm. At first, they didn’t know how to light fire so they took turns with other members of the group to keep it burning. But when he was making stone tools by rubbing two stones he accidently discovered fire.