Solar System Objects
Stars and the Sun
Star Formations
Galaxies
Measurements & Space Tools
The Planets
100

This object is smaller than asteroids, comets, and moons. 

What is a meteoroid? 

100

Sudden eruptions of intense energy from the Sun's surface.

What are solar flares?

100

A large cloud of gas and dust where a star forms.

What is a nebula? 


100

The explosion that began the universe.

What is the Big Bang?

100

Energy that travels in waves.

What is electromagnetic radiation?

100

The smallest planet and it has no moons. 

What is Mercury?

200

This object looks like a white ball with a long tail when near the Sun.

What is a comet?

200

Huge loops of plasma erupting from the Sun.

What are prominences?

200

The densest part of a nebula formed by gravity pulling material together.

What is a protostar?


200

Galaxies with no regular shape.

What are Irregular Galaxies?

200

The distance between the Sun and the Earth.

What is one Astronomical Unit (AU)?

200

The planet that has 79 moons and is known for a "Red Spot".

What is Jupiter? 

300

These are moons that orbit planets?

What are natural satellites? 

300

The layer that the arrow is pointing to.

What is the Radiative Zone.

300

The process that begins after a protostar forms. 

What is nuclear fusion? 


300
Galaxies that are rounded and slightly flattened.

What are Elliptical Galaxies?


300

This measures nearby stars using apparent motion.

What is parallax?

300

The planet that takes 687 Earth days to orbit the Sun.

What is Mars?


400

These rocky objects are mostly found between Mars and Jupiter.

What are asteroids?
400

Hotter stars are usually ___ while cooler stars are usually ___ .

What is blue and red. 

400

A system with two stars.

What is a binary star system?


400

Galaxies with pinwheel arms and a central bump.

What are Spiral Galaxies?

400

A telescope that uses lenses and mirrors.

What is an optical telescope? 


400

This planet has 14 moons.

What is Neptune?

500

This separates the inner and outer planets.

What is the asteroid belt? 

500

These stars are smaller and hotter than Supergiants.

What are White Dwarfs.

500

Star clusters that are loose and disorganized? 

What are open star systems? 

500
Active, young galaxies with black holes at their centers.

What are Quasars?

500

Name one type of electromagnetic radiation.

What is gamma rays, visible light, X-rays, or radio waves?

500

Name a Dwarf Planet. (there are 5 in our solar system)

What is Pluto, Eris, Ceres, Makemake, or Haumea? 

600

Name the 8 planets in order.

What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune?

600
The 4 ways that astronomers classify stars.

What is color, size, temperature, and brightness? 

600

A star system that is round with over 1 million older stars. 

What is a Globular Star System? 

600

The galaxy name AND type that our solar system resides in. 

What is a Spiral Galaxy called the Milky Way Galaxy? 

600

The name of the diagram that provides data about stars temperature and size. 

What is the H-R diagram? 

600

Name the inner planets AND the outer planets. 

What is...

Inner planets: Mercury, Venus, Earth, Mars

Outer planets: Jupiter, Saturn, Uranus, Neptune

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