Planets I
Planets II
Space
Words
100
It is also known as the "Red Planet".
What is another name for Mars?
100
It is the smallest of the four gas giants.
How big is Neptune?
100
The Sun is center of this system.
What is the Solar System?
100
A person that studies the universe.
What is an "astronomer"?
200
It is the layer that protects Earth from Sun's ultraviolet radiation.
What is the Ozone Layer?
200
The surface temperature is way too hot and there is no space to hide from it. Plus, the atmosphere contains mostly carbon dioxide.
Why is there no living being on Venus, eventhough it has an atmosphere?
200
The third planet from the Sun.
What is Earth?
200
In an observatory the Milky Way has this shape, it looks like a round plate.
What is a "disk"?
300
This planet is special because it spins on its side.
What makes Uranus so special?
300
Because it is about the identical size, chemistry, gravity and density as Earth. And almost the exact types of materials and the same amounts.
Why is Venus known as Earth's sister planet?
300
These are the "gas giants".
What are Jupiter, Saturn, Uranus, Neptune?
300
It describes a wide open space, it seems endless. Our universe seems to be this way.
What is "vast"?
400
It is called "The Eye of Jupiter".
What is the name of the whirlpool of storms on Jupiter?
400
This planet looks a lot like Earth's Moon, it has many craters with areas of smooth plains, no moons and no atmosphere.
How does Mercury look like?
400
These are the rocky planets.
What are Mercury, Venus, Earth and Mars?
400
These flying objects are sent to space to explore planets.
What is a "space probe"?
500
That is the temperature swing of Mercury, the greatest in our Solar System.
What is 600 Degree C?
500
Because Saturn is made out of hydrogen and helium, the two lightest elements in the universe.
Why is Saturn the lightest planet in our Solar System?
500
Because the moons are closer to the planets, their gravity pulls them towards them.
Why do the moons not orbit the Sun but the planets?
500
Without it people would float into the air.
What is gravity?
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