|The Sun emits a stream of ____ particles called the solar wind.
|The Earth is a slightly ____ spheroid (flatten at the poles).
|Stars, planets, asteroids, and comets are ____ objects.
|Mercury ____ only three times during every two orbits.
|Mars appears ____ due to iron oxide dust covering its surface.
|During a ____ eclipse the Earth casts a shadow on the Moon.
|The Earth's ozone layer blocks ____ solar radiation.
|Eris, Pluto, Haumea, Makemake, and Ceres are ____ planets.