EARTH IN SPACE (PART 2) QUIZ 2

MERCURY

planet closest to the sun

ULTRAVIOLET RADIATION

It is not likely that any living organism could survive on the Martian surface because of __________________________

ORBIT

a revolution around the sun

AXIS

the Earth rotates on this

PLANETS

these celestial bodies shine by reflected light

ASTEROIDS

these masses of rock orbit between Mars and Jupiter

COMETS

these members of the solar system are made of ice and dust

VENUS

this planet has a dense atmosphere of carbon dioxide

MARS

this planet is referred to as the "red" planet

4

Galileo discovered _____ of Jupiter's 67 satelites

LARGEST

In size, Jupiter is the ___________________ planet in the solar system

JOVIAN PLANETS

Jupiter, Saturn, Uranus, Neptune

TERRESTRIAL

Mercury, Venus, Earth, Mars

SUN ELLIPTICAL

Most comets travel around the ____________ in elongated _________________ orbits

OXYGEN NITROGEN

The 2 major components of the Earth's atmosphere are ________________ and ________________

OPPOSITE

The direction of rotation of Venus is ________________ to the direction of all other planets

MEASURE STANDARD

The mass and gravity of the Earth are used as a __________________ of comparison with other planets

A PLANET

The numerous asteroids may have been _________________

OF A DETAILED STUDY OF URANUS

The predicted location of Neptune was made possible because ___________________________

ICE

The rings of Saturn consist of particles of ______________

PERPENDICULAR

The satellites of Uranus revolve around the planet in planes almost ___________ to its orbit

INCLINED MORE THAN OTHER PLANETS MOST ELLIPTICAL ORBIT

What is unique about Pluto's orbit around the sun