1
On top of this element has nothing growing on it, is covered with rocks or consists of large areas.
2
Is the collection of eight planets and their moons in orbit around the Sun.
3
Is a layer of different gases that surrounds a planet.
4
Are astronomical objects of rock and metal orbiting the Sun.
5
Is a big release of energy.
6
Is an energetic and luminous stellar explosion.
7
Is the 1st element of the periodic table (H2).
8
Is the force that attracts a body toward the center of the Earth, or any other physical body having mass.
9
Is a mountain that has a crater which lava and rock fragments are or have been erupted from the earth’s crust.
10
Is the 8th element of the periodic table (O)
11
Is the third planet in the solar system according to its proximity to the Sun and the only living planet.
12
Is the natural satellite of the earth, visible by reflected light from the sun.
13
Is a luminous celestial body/an incandescent body.
14
It is a mixture of solid, volatile and liquid materials. Is it a molten rock.
15
Is a star located in the center of the solar system.
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