Earth/Space
Easy
Earth/Space
Super Easy
Earth/Space
Challenging
Earth/Space
for Kids
Earth/Space
Genius Level
100
The galaxy in which Earth is located
What is the Milky Way
100
The U.S. space program that first landed astronauts on the moon
What is Apollo
100
The ancient Greeks believed all objects revolved around this
What is the Earth
100
The planet cosest to the Sun
What is Mercury
100
This planet was named after the Roman god of the sea.
What is Neptune
200
The dark spot on the surface of the Sun
What are suspots
200
The third planet from the sun
What is Earth
200
These rocky bodies are located in an area between Mars and Jupiter
What are asteroids
200
The colorful displays resulting from the solar wind colliding with gases in Earth's atmosphere
What are the Auroras
200
The planet named for the Roman god of war
What is Mars
300
The combining of atomic nuclei that gives the Sun its energy
What is nuclear fusion
300

what is the name of the layer of the earth the lies between the earth's crust and the Asthenosphere

what is the "Lithosphere"
300
The cloud of gas and dust in which a star forms
What is a nebula
300
The largest planet in the solar system
What is Jupiter
300
Mars has two of these in orbit
What are moons
400
In many stars, hydrogen is fused into this element
What is Helium
400
What the planets all do relative to the sun
What is revolve
400
The two main gases found in a star
What are hydrogen and helium
400
Three happenings that are similar on the Earth and the Sun
What are earthquakes, tsunamis, and volcanoes
400
The atmosphere on some planets is non-existent due to the lack of this
What is a magnetic field
500
The two days a year on which days and nights are of equal length are caled
What is a equinox
500
The longest day of the year on Earth occurs on this day
What is the winter solstice
500
The brightness of a star based on how appears from the Earth
What is magnitude
500
The beginning of a new star
What is a protostar
500
The study of sunspots helped scientists realize this about the Sun
What is it rotates
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