Grade 12 Quiz Bee

What was the daily household item that is used to minimize charcoal iron rust?

• Candlewax

• Pork lard

• Chalk powder

• Cornstarch

Which ancient civilization invented multiplication?

• Egyptians

• Aztecs

• Babylonians

• Persians

Answer explanation

In what industry did Benjamin Almeda Sr. dedicate his works?

• Marine Ecology

• Microbiology and Pharmacology

• Food Technology

• Automotive and Machinery

Answer explanation

What comes next to this Fibonacci sequence: 1, 2, 3, 5, 8, 13, 21, _?

• 23

• 27

• 34

• 39

Answer explanation

What device first proved that Earth rotates on its axis?

• Foucault Pendulum

• Gyroscope

• Sphygmomanometer

• Sundial

Answer explanation

Who were the first people to ever use negative numbers?

• Indians

• Chinese

• Romans

• Greeks

Answer explanation

What was the first portable cellphone that allowed people to make long-distance calls?

• Samsung SH-100

• Nokia Mobira Cityman 900

• Motorola DynaTAC 8000X

• Alcatel OT Easy HF

Answer explanation

Which of the following is a palindromic number?

• 123

• 554,433

• 1,001,000

• 11

Answer explanation

What was the name of the camera that was invented by George Eastman?

• Kodak

• Camera Obscura

• Daguerreotype Camera

• Heliograph

Which of the following shapes is the strongest?

• Circle

• Triangle

• Square

• Rectangle