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. |
من داخل الكتاب
النتائج 1-3 من 16
الصفحة 24
... occurred tens or hundreds of millions of years before the origin of the Solar System and our Earth . Carbonaceous chondrites contain rare calcium and aluminum oxide minerals that can survive great heat . These minerals occur in clumps ...
... occurred tens or hundreds of millions of years before the origin of the Solar System and our Earth . Carbonaceous chondrites contain rare calcium and aluminum oxide minerals that can survive great heat . These minerals occur in clumps ...
الصفحة 55
... occurred at the same rate throughout geological time . The 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 ...
... occurred at the same rate throughout geological time . The 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 ...
الصفحة 57
... occurred in fits and starts . Over tens or hundreds of millions of years , many plants and animals appear to have changed little , but steadily . Six such periods of steady evolution are known , but each of the first five ended in a ...
... occurred in fits and starts . Over tens or hundreds of millions of years , many plants and animals appear to have changed little , but steadily . Six such periods of steady evolution are known , but each of the first five ended in a ...
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