Made up of all the planets that orbit the sun. Also consists of moons, comets, asteroids, minor planets, and dust and gas.

In order to be classified as a ________ a solar system body must orbit the sun, be large enough so that its own gravity molds it into a spherical shape, and it must have an orbit free of other small objects. 

A huge, bright ball of burning gas that is held together by gravity. Mostly contain hydrogen as well as helium ad small amounts of other elements. 

A star, and the largest object in the solar system. Burns brightly in the center as planets and other objects orbit around it.

A force which tries to pull two objects together. If an object has mass, it has this. 

Small solar system bodies that orbit the Sun. Made of rock and metal, and can also contain organic compounds.

A natural satellite that orbits a planet. 

The process in which a star produces its light, heat and energy.

A relatively small solar system body that orbits the sun. When close to the sun they display a visible coma (fuzzy outline) and sometimes a tail.

Dark spots on the surface of the sun that are much cooler (colder) than the rest of the sun.

A sudden, temporary outburst of energy from a small area of the sun's surface. 

A meteoroid that survives falling through the Earth's atmosphere and collides with the Earth's surface.