SPACESHIP EARTH QUIZ 3
500
About ____________________________ meteorites reach the earth each year
SOLAR ACTIVITY
All activity on the sun's surface is called _____________________
NORTHERN LIGHTS
Atomic particles from solar flares can cause:
MERCURY VENUS EARTH MARS JUPITER SATURN URANUS NEPTUNE
Choose the correct order of the plants:
WEST TO EAST
Earth rotates ______________________
NUCLEAR FUSION
In the sun, hydrogen is converted to helium through:
200 OR MORE YEARS
Long-period comets take ____________________________ to orbit the sun
NO
Mercury has ___________________ moons
ATOMIC PARTICLES
Solar flares produce x-rays, radio waves, and clouds of atomic particles
ASTEROID BELT
Some asteroids do not lie in the _________________
PROMINENCES
Spectacular eruptions of hot gases on the sun's surface are called:
MAGNETIC FIELD
The cooler temperature of sunspots is caused by a:
99
The sun contains ____________________ percent of the mass of the solar system
25 DAYS 9 HOURS
The sun rotates on its axis once every:
10,000
The surface temperature of the sun is about ___________________ degrees Farenheit
NEPTUNE
_________________ is the outermost planet from the sun
COMETS
bright objects with nucleus, come and tail
UMBRA
dark center of a shadow
VENUS
does not have a moon
METEORITES
fall to earth
JUPITER
largest planet
SIDEREAL DAY
rotation of earth relative to distant stars
METEORS
shooting stars
NEPTUNE
the farthest planet
ASTEROIDS
thousands of "small planets" orbiting the sun
SOLAR ACTIVITY
11-year period
