Which planet is made up of about 70% water?
A. Mars
B. Earth
C. Venus
D. Mecury
B. Earth
100
Which planet has the largest moon, Ganymede?
A. Saturn
B. Jupiter
C. Neptune
D. Uranus
.
B. Jupiter
100
Which Greek astronomer developed the geocentric model of the solar system?
A. Copernicus
B. Ptolemy
C. Kepler
D. Galileo
B. Ptolemy
100
What is the part of a comet that is formed as it nears the sun?
A. coma
B. head
C. tail
D. nucleus
C. tail
100
Which interior layer of the sun produces an enormous amount of energy?
A.radiation zone
B. convection zone
C. core
D. solar winds
C. core
200
Which planet is the hottest planet in the solar system?
A. Mercury
B. Mars
C. Earth
D. Venus
D. Venus
200
Which planet is known for its spectacular rings?
A. Uranus
B. Neptune
C. Saturn
D. Jupiter
C. Saturn
200
Which Danish astronomer made observations about the positions of the planets without using a telescope?
A. Tycho Brahe
B. Galileo
C. Ptolemy
D. Copernicus
A. Tycho Brahe
200
What are these chunk of rocks called that pass through the atmosphere and hit earth's surface site?
A. meteor
B. asteroid
C. meteorite
D. meteor shower
C. meteorite
200
Which part of the sun's atmosphere gives off the visible light?
A. corona
B. chromosphere
C. photosphere
D. sunspots
C. photosphere
300
Which planet is known as the red planet?
A. Mars
B. Earth
C. Venus
D. Mercury
A. Mars
300
Which planet rotates from top to bottom instead of from side to side?
A. Saturn
B. Neptune
C. Jupiter
D. Uranus
D. Uranus
300
Which Danish astronomer discovered that the orbit of each planet is an ellipse?
A. Copernicus
B. Galileo
C. Kepler
D. Tycho Brahe
C. Kepler
300
What is a chunk of rock or dust in space that enters Earth's atmosphere producing a streak of light in the sky called?
A. meteoroid
B. meteor
C. meteorite
D. meteorleft
B. meteor
300
What are the gas eruptions into space which connected sunspot regions called?
A. magnetic storms
B. solar flares
C. solar winds
D. prominences
B. solar flares
400
Which planet has the most extreme temperatures in the solar system?
A. Earth
B. Mars
C. Mercury
D. Venus
C. Mercury
400
Which planet as the Great Red Spot?
A. Jupiter
B. Saturn
C. Neptune
D. Uranus
A. Jupiter
400
Which Italian astronomer used the telescope to make discoveries that supported the heliocentric model of the solar system?
A. Copernicus
B. Galileo
C. Kepler
D. Ptolemy
B. Galileo
400
What are the space objects that are believed to be pieces of the early solar system that never came together?
A. meteoroids
B. comets
C. asteroids
D. meteor showers
C. asteroids
400
What is the color sphere of the sun called?
A. photosphere
B. chromosphere
C. solar flare
D. prominence
B. chromosphere
500
Which planet is rich with oxygen?
A. Venus
B. Mars
C. Earth
D. Mercury
C. Earth
500
Which planet is a cold, dark planet with the Great Dark Spot?
A. Jupiter
B. Uranus
C. Neptune
D. Saturn
C. Neptune
500
Which Polish astronomer developed the heliocentric model of the solar system by working out the arrangement of the known arrangement of the planets around the sun?
A. Copernicus
B. Galileo
C. Kepler
D. Ptolemy
A. Copernicus
500
What doughnut-shaped region that extends from beyond Neptune's orbit has comets?
A. Oort cloud
B. asteroid belt
C. Kuiper belt
D. black belt
C. Kuiper belt
500
What are rippling sheets of light in the sky at the poles called?
A. magnetic storms
B. solar flares
C. solar winds
D. auroras