gravitational force - attraction of objects that have mass, solar system - star and objects that move around it, planet - round object moves around star, cleared neighborhood around orbit, moon - object that orbits a star, comet - rock, ice, dust moves around sun has "tail" of gas/dust, asteroid - small rocky/metallic object moves around sun, dwarf planet - round object moves around sun, not cleared neighborhood around its orbit, astronomical unit - measurement of distance between Earth and Sun, scale model - model shows same size or distance of real one,

6th Science Solar System

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