Science Enhanced Scope & Sequence Grade 6

Asteroids are less than 300 km (186 miles) in diameter. comet. A small object (10–25 km in diameter) composed of dust and frozen gases and in orbit around the sun. Comets are found at great distances from the sun (beyond the dwarf planet Pluto) in stable orbits or in long, elliptical orbits passing near the sun. A comet’s tail is caused by ... ................
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