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 9
الصفحة 32
... Evidence from most . meteorites indicates that volcanism on their asteroidal parents ended more than 4,400 million years ago . Even the Moon , with a diameter of nearly 2,200 miles , was " dead " by about 2,900 million years ago . How ...
... Evidence from most . meteorites indicates that volcanism on their asteroidal parents ended more than 4,400 million years ago . Even the Moon , with a diameter of nearly 2,200 miles , was " dead " by about 2,900 million years ago . How ...
الصفحة 55
... evidence presented here indicates that this is not strictly true . Some 4,550 million years ago the Earth formed , melted , boiled off any water and lost its original atmosphere . Water and atmosphere were replenished by bombardment of ...
... evidence presented here indicates that this is not strictly true . Some 4,550 million years ago the Earth formed , melted , boiled off any water and lost its original atmosphere . Water and atmosphere were replenished by bombardment of ...
الصفحة 57
... evidence for meteorite impact at the Cretaceous - Tertiary boundary , about 65 years ago . This evidence is chic . million heit . CI . particularly compelling , and includes world - wide enrichment in noble metals in a thin layer at the ...
... evidence for meteorite impact at the Cretaceous - Tertiary boundary , about 65 years ago . This evidence is chic . million heit . CI . particularly compelling , and includes world - wide enrichment in noble metals in a thin layer at the ...
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