Class 5 SST Question Answers - The World of Growing Knowledge

Q1: What is the earliest form of communication that ancient humans used?
Ans: Ancient humans initially communicated by imitating animal sounds to convey their ideas and feelings.

Q2: What did ancient humans use to convey their ideas through drawings before the invention of writing?
Ans: Before writing was invented, ancient humans used symbolic drawings on cave walls to convey their ideas.

Q3: How did the Sumerians record their writings in ancient times?
Ans: The Sumerians used a sharp knife to etch symbols on clay tablets to record their writings.

Q4: Which ancient civilization is known for inventing paper, and what plant did they use to make it?Ans: The ancient Egyptians are known for inventing paper using the papyrus plant found in the Nile Delta.

Q5: When and where did the art of printing originate, and who revolutionized it later?
Ans: The art of printing originated in China around 500 CE. Johann Gutenberg revolutionized printing by inventing the printing press in 1455.

Q6: What special script did Louis Braille invent, and how does it help people with visual impairments?
Ans: Louis Braille invented Braille, a script that uses raised dots on thick paper to represent letters and numbers. People with visual impairments read it by feeling the raised dots with their fingers.

Q7: Which country introduced the concept of zero and the decimal system?
Ans: India introduced the concept of zero and the decimal system.

Q8: What is the term "Hindu-Arabic numerals" referring to, and why is it used?
Ans: "Hindu-Arabic numerals" refers to the numbers we commonly use today, which were adopted by the Arab world from India and are based on the Indian numerals.

Q9: What was the earliest writing material used by Babylonians and Assyrians, and how did they use it?
Ans: The earliest writing material used by Babylonians and Assyrians was clay tablets. They inscribed these tablets while they were wet and then baked them to make the inscriptions solid.

Q10: How has education been promoted in India, and what are some of the government initiatives to enhance literacy?
Ans: Education in India has been promoted through various government initiatives like the Total Literacy Campaign, District Primary Education Programme, Sarva Shiksha Abhiyan, and Mid-day Meals Programme, which have established schools and improved attendance to encourage children to complete their education.