英语科普注释读物 科学知识 下

1 (p0-1): CONTENTS
1 (p0-2): 22．WHAT“WEIGHT”MEANS
7 (p0-3): 23．BALANCING
14 (p0-4): 24．CENTRIFUGAL FORCE
20 (p0-5): 25．METALS
25 (p0-6): 26．SPRINGS AND SPRINGINESS
31 (p0-7): 27．BRIDGES AND ARCHES
37 (p0-8): 28．ELECTRICITY
43 (p0-9): 29．ELECTRIC CURRENT
49 (p0-10): 30．MAGNETS—1
56 (p0-11): 31．MAGNETS—2
62 (p0-12): 32．LIGHT AND DARKNESS
68 (p0-13): 33．LIGHT AND COLOUR
73 (p0-14): 34．REFLECTION AND MIRRORS—1
78 (p0-15): 35．REFLECTION AND MIRRORS—2
83 (p0-16): 36．REFRACTION AND MAGNIFYING GLASSES
90 (p0-17): 37．EYES AND EYESIGHT
97 (p0-18): 38．OPTICAL ILLUSIONS
103 (p0-19): 39．OPTICAL ILLUSIONS(COLOUR)
108 (p0-20): 40．LIGHT AND HEAT WAVES
113 (p0-21): 41．THE SHORTEST WAVES
118 (p0-22): 42．SOUND WAVES
123 (p0-23): 43．HOW SOUND BEHAVES
129 (p0-24): VOCABULARY