The Amazing Math Journey
Volume Three: A Treasury of Knowledge
(Answer Key)
Chapter 1 What Is a Lebombo Bone?
(1) C
(2) D
(3) Lebombo Bone
(4) ✘, ✘
Chapter 2 The Association between “Sun” and 1
(1) ✘, ✔
(2) ✘, ✘
(3) C
Chapter 3 The Inca’s “Quipu”
(1) C
(2) Quipu
(3) ✘, ✘
Chapter 4 How to Use Knots to Keep Records?
(1) B
(2) C
(3) ✘, ✘
Chapter 5 Who Deciphered the Ancient Egyptian Hieroglyphs?
(1) C
(2) Jean-Francois Champollion
(3) ✘, ✘
Chapter 6 “Papyrus” Is Not Real Paper
(1) D
(2) C
(3) ✘, ✔
Chapter 7 Who Invented the Number 0?
(1) C
(2) Ancient Indians
(3) ✘, ✘
Chapter 8 Are Pyramids Only in Egypt?
(1) B
(2) Kukulkan Pyramid
(3) ✘, ✘
Chapter 9 The Ancient and Mysterious Cuneiform Writing
(1) C
(2) A
(3) ✔, ✔
Chapter 10 Does the “Hanging Gardens” Really Float in the Air?
(1) D
(2) Hanging Gardens
(3) ✘, ✔
Chapter 11 How Were Roman Numerals Invented?
(1) C
(2) Ⅰ, Ⅴ, Ⅹ, L, Ⅽ, D, Ⅿ
(3) ✘, ✔
Chapter 12 World Architectural Wonder—the Colosseum
(1) B
(2) Flavian Amphitheater
(3) ✔, ✘
Chapter 13 Can Counting Rods Be Used to Calculate Negative Numbers?
(1) C
(2) red ink (deficit)
(3) ✘, ✔
Chapter 14 Colorful Terracotta Army
(1) B
(2) Environmental change
(3) ✔, ✘
Chapter 15 Why Does the Sun Rise in the East and Set in the West?
(1) A
(2) earth rotates from west to east
(3) ✔, ✘
Chapter 16 The Origin of the Name of Sanxingdui
(1) B
(2) Ancient Shu
(3) ✘, ✔
Chapter 17 Why Does the Moon Phase Keep Changing?
(1) B, D
(2) the new moon
(3) ✔, ✘
Chapter 18 Why Can’t We See the Dark Side of the Moon?
(1) D
(2) tidal locking
(3) ✘, ✘
Chapter 19 Astronomical Seasons and Meteorological Seasons
(1) D
(2) 22
(3) ✘, ✔
Chapter 20 Where Does the Sun Never Set?
(1) C
(2) A
(3) ✘, ✘
Chapter 21 Why Is a Quarter of 1 Hour Called 15 Minutes?
(1) B
(2) A, B
(3) ✘, ✔
Chapter 22 What Time Is “San Geng Banye”?
(1) A
(2) geng
(3) ✘, ✔
Chapter 23 Why Do Clock Hands Rotate in a Clockwise Direction?
(1) C
(2) the sundial needle
(3) ✔, ✘
Chapter 24 Which Countries Have the 12 Zodiac Signs?
(1) B
(2) 2036
(3) ✘, ✔
Chapter 25 How Many Constellations Are in the Sky?
(1) C
(2) Ptolemy
(3) ✘, ✘
Chapter 26 The Brightest Star in the Night Sky
(1) B
(2) Sirius
(3) ✘, ✔
Chapter 27 Where Will a Compass Point to at the South Pole?
(1) A, D
(2) about 11°
(3) ✘, ✘
Chapter 28 Can Magnets Fail?
(1) C
(2) Pierre Curie
(3) ✔, ✔