MeteoritesSterling Pub., 1993 - 60 من الصفحات "A wonderful resource....Students will be drawn to read and investigate....The text is direct, interesting, and free of mind-numbing chemistry and physics formulas that so often deter YAs from further investigation....An exceptionally well-done summary."-- "SLJ . "Well-written and nicely illustrated....The technical quality of the book is very good...."-- "Science Bks & Films, a starred review . 60 pages (all in color), 8 1/4 x 7 7/8. |
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النتائج 1-3 من 11
الصفحة
... Crater ( Barringer Crater ) , Arizona . Aerial view over the crater looking west . The crater is 1300 yards across and 185 yards deep . It was formed by the impact of an iron meteorite about 50,000 years ago . Inset : Left , polished ...
... Crater ( Barringer Crater ) , Arizona . Aerial view over the crater looking west . The crater is 1300 yards across and 185 yards deep . It was formed by the impact of an iron meteorite about 50,000 years ago . Inset : Left , polished ...
الصفحة 1
... crater . In the 1920s it was realized that the projectile must have vaporized on impact , so the drilling equipment was abandoned . Meteorites are pieces of asteroids , 155 pieces of the Moon , of Mars and perhaps even of comets , that ...
... crater . In the 1920s it was realized that the projectile must have vaporized on impact , so the drilling equipment was abandoned . Meteorites are pieces of asteroids , 155 pieces of the Moon , of Mars and perhaps even of comets , that ...
الصفحة 59
... crater Crater formed by high velocity impact . Fall Recovered meteorite whose fall was witnessed . Feldspar Group of silicate ( stony ) minerals with calcium , sodium or potassium , plus aluminum . Find Meteorite whose fall was not ...
... crater Crater formed by high velocity impact . Fall Recovered meteorite whose fall was witnessed . Feldspar Group of silicate ( stony ) minerals with calcium , sodium or potassium , plus aluminum . Find Meteorite whose fall was not ...
المحتوى
Introduction | 1 |
How do meteorites get here? | 8 |
Where do meteorites come from? | 14 |
حقوق النشر | |
3 من الأقسام الأخرى غير ظاهرة
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
anorthosite Antarctica Apollo astroblemes atmospheric flight basaltic basaltic achondrites basaltic rock blue ice bombardment bright fireball calcium carbonaceous chondrite caused chemical elements chondrites contain chondrules cometary composed cooled core Cosmic spherules crater crystals dark decay feldspar fell formation age fragments fusion crust gravity group IIAB Halley's Comet highlands howardites igneous rocks inches indicates interplanetary dust interstellar cloud iridium iron meteorites iron-nickel metal land on Earth liquid lunar magnesium mare Mars melting mesosiderites Meteor meteorite falls meteorite impact meteorite landed meteorite shower meteoroid micrometeorites million years ago mineral grains molten Moon nebula objects observed occurred olivine orbit palladium Pallasites parent asteroid particles percent nickel planetary planets formed plutonium produced pyroxene radioactive aluminum samples silicate SNC meteorites Solar System solar wind solidified sonic booms space speed stars stone stony material stony meteorite stony minerals Stony-iron meteorite sulfide Sun and planets supernova surface temperature Widmanstätten pattern