Vocabulary
A huge ball of very hot gas that gives off energy is
What is a star?
Any of the four planets closest to the sun
What are inner planets?
Outer planets are often called ______ because of its thick atmosphere.
What are Gas Giants
This our home galaxy
What is the Milky Way?
The orbit for this planet is tilted.
The path an object takes as it revolves around a star, planet, or moon
What is an orbit?
This keeps objects orbiting the sun
What is gravity?
All outer planets share this characteristic, but only one of them can be seen with a telescope.
What are rings?
Our Milky Way is considered this type of galaxy
What is a Spiral Galaxy?
This is the object gets the nickname fireball, because it gets so hot that it glows a streak of light.
What is a meteor?
A large, round object that revolves around the sun but has not cleared the region around its orbit.
What is a dwarf planet?
This is the planet most like Earth
What is Mars?
Known for being the coldest object in our solar system
What is Triton?
These are oval shaped galaxies
What are elliptical galaxies?
Most asteroids orbit in a region between Mars and Jupiter called ______.
What is the Asteroid Belt?
This is an object in the solar system that is a frozen mass of ice and dust
What is a comet?
What are rocky surfaces?
The moons Io, Ganymede, Europa, and Callisto, belong to this planet.
What is Jupiter?
Though it is extremely large to the naked eye, this is an average-sized star
What is the sun?
When this object comes close to the sun, it heats up and loses dusts and rocky matter.
What is a comet?
The sun and its planets, along with moons, asteroids, and comets.
What is the solar system?
This planet has little to no atmosphere and gets very cold at night
What is Mercury?
These are the main gases that make up Jupiter's atmosphere
What are hydrogen and helium?
The probability that a newly discovered galaxy will be a spiral galaxy.
What is three-fourths?
This object should have been named a planet before Pluto because it is slightly larger
What is Eris?