The Solar System Online Test

1.) The dominating magnetic field throughout the interplanetary regions of the solar system, except in the immediate environment of planets which have their own magnetic fields?

2.) A solid body in interplanetary space before it reaches the Earth's atmosphere?

3.) These are the Planets Except?

9.) A planet that is also the protector of the ancient league of Latin cities?

10.) The 3rd planet from the Sun at a distance of about 150 million kilometers (93.2 million miles)?

11.) A celestial body in the solar system, classified both as a dwarf planet and as the prototype of a yet-to-be-named family of trans-Neptunian objects?

12.) Are considered to be "twin planets" because they are close to the same size and are composed of similar elements?

8.) The fifth planet from the Sun and is the largest one in the solar system?

7.) Appears to the naked eye in the night sky as a bright, yellowish star varying usually between magnitude +1 and 0 and takes approximately 29 and a half years to make a complete circuit of the ecliptic against the background constellations of the zodiac?

4.) These are the four innermost planets in the solar system, Mercury, Venus, Earth and Mars?

5.) These are satellites that primarily are used to monitor Earth's weather and climate?

6.) A planet thst is not well absorbed across the skin so skin contact is not likely to cause mercury poisoning, especially with a brief one-time exposure?

1.) The dimensions of the solar system are specified in terms of the mean distance from Earth to the Sun, called __________.

2.) Tthe only planetary system known to exist around a star similar to the Sun until 1995, when astronomers discovered a planet about 0.6 times the mass of Jupiter orbiting the star 51 Pegasi is called?

15.) Are rocky and metallic objects too small to be considered planets. They are sometimes called minor planets?

16.) Are made chiefly of hydrogen and a smaller amount of helium?

17.) The most prominent feature in our solar system. It is the largest object and contains approximately 98% of the total solar system mass?

18.) The only planet on which water can exist in liquid form on the surface (though there may be liquid ethane or methane on Titan's surface and liquid water beneath the surface of Europa)?

19.) Are small bodies made out of dust and ices ("dirty snowballs"). The term "comet" derives from the Greek aster kometes, which means "long-haired star"---a reference to the tail?

Consists of five parts: the first, the atmosphere, is gaseous; the second, the hydrosphere, is liquid; the third, fourth, and fifth, the lithosphere, mantle, and core, are largely solid?


Solar System presents a vivid multimedia adventure unfolding the splendor of the Sun, planets, moons, comets, asteroids, and more. Discover the latest scientific information, or study the history of space exploration, rocketry, early astronauts, space missions, spacecraft through a vast archive of photographs, scientific facts, text, graphics and videos. Views of the Solar System offers enhanced exploration and educational enjoyment of the solar system and beyond.


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