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PS Investigation 5
PS Investigation 5 vocab
Term | Definition |
---|---|
ASTEROID | A SMALL, ROCKY OBJECT THAT ORBITS THE SUN |
COMET | A CHUNK OF ICE, DUST AND ROCK MATERIAL A FEW KILOMETERS IN SIZE |
COMPLEX CRATER | A CRATER THAT HAS CENTRAL PEAKS AND EJECTA THROWN OUT IN LONG RAYS |
EJECTA | THE MATERIAL DISPLACED FROM THE LAND WHEN A CRATER IS FORMED |
FLOODED CRATER | A CRATER FROM A LARGE IMPACT THAT FILLED WITH MAGMA FROM BENEATH THE SURFACE |
IMPACT | THE CRASH BETWEEN ONE OBJECT (IMPACTOR) AND ANOTHER OBJECT |
METEOROID | A SMALL OR MEDIUM SIZED PIECE OF ROCK OR METAL FROM SPACE |
REGOLITH | THE PULVERIZED SURFACE MATERIAL OF THE MOON; ALSO KNOWN AS LUNAR SOIL |
SIMPLE CRATER | A SMALL, BOWL-SHAPED CRATER THAT HAS A FAIRLY UNIFORM BLANKET OF EJECTA DISTRIBUTED AROUND THE RIM |