This object is smaller than asteroids, comets, and moons.
What is a meteoroid?
Sudden eruptions of intense energy from the Sun's surface.
What are solar flares?
A large cloud of gas and dust where a star forms.
What is a nebula?
The explosion that began the universe.
What is the Big Bang?
Energy that travels in waves.
What is electromagnetic radiation?
The smallest planet and it has no moons.
What is Mercury?
This object looks like a white ball with a long tail when near the Sun.
What is a comet?
Huge loops of plasma erupting from the Sun.
What are prominences?
The densest part of a nebula formed by gravity pulling material together.
What is a protostar?
Galaxies with no regular shape.
What are Irregular Galaxies?
The distance between the Sun and the Earth.
What is one Astronomical Unit (AU)?
The planet that has 79 moons and is known for a "Red Spot".
What is Jupiter?
These are moons that orbit planets?
What are natural satellites?
The layer that the arrow is pointing to.

What is the Radiative Zone.
The process that begins after a protostar forms.
What is nuclear fusion?
What are Elliptical Galaxies?
This measures nearby stars using apparent motion.
What is parallax?
The planet that takes 687 Earth days to orbit the Sun.
What is Mars?
These rocky objects are mostly found between Mars and Jupiter.
Hotter stars are usually ___ while cooler stars are usually ___ .
What is blue and red.
A system with two stars.
What is a binary star system?
Galaxies with pinwheel arms and a central bump.
What are Spiral Galaxies?
A telescope that uses lenses and mirrors.
What is an optical telescope?
This planet has 14 moons.
What is Neptune?
This separates the inner and outer planets.
What is the asteroid belt?
These stars are smaller and hotter than Supergiants.
What are White Dwarfs.
Star clusters that are loose and disorganized?
What are open star systems?
What are Quasars?
Name one type of electromagnetic radiation.
What is gamma rays, visible light, X-rays, or radio waves?
Name a Dwarf Planet. (there are 5 in our solar system)
What is Pluto, Eris, Ceres, Makemake, or Haumea?
Name the 8 planets in order.
What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune?
What is color, size, temperature, and brightness?
A star system that is round with over 1 million older stars.
What is a Globular Star System?
The galaxy name AND type that our solar system resides in.
What is a Spiral Galaxy called the Milky Way Galaxy?
The name of the diagram that provides data about stars temperature and size.
What is the H-R diagram?
Name the inner planets AND the outer planets.
What is...
Inner planets: Mercury, Venus, Earth, Mars
Outer planets: Jupiter, Saturn, Uranus, Neptune