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8th Grade Unit 4.2 Our Solar System

Horizontales
Brief streaks of light produced by a small particle entering Earth's atmosphere at a high speed.
A wide, flat zone of small particles that orbit a planet.
Jupiter, Saturn, Uranus, and Neptune are made mainly of hydrogen, helium, and other gases.
A space object that reaches Earth's surface. The exterior is usually smooth from melting, but the inside may still be frozen.
Mercury, Venus, Earth, and Mars- the four planets closest to the Sun.
Occurs when molten rock moves from a planet's hot interior onto its surface.
Verticales
The shape on an orbit, which is close to a flattened circle or oval.
One AU is Earth's average distance from the Sun, about 93 million miles.
The process of change in a crust due to the motion of hot material underneath.
Small, solid, rocky bodies that orbit close to the Sun.
A small, icy object that is difficult to see even with a powerful telescope. It produces a coma, or a cloud of material.