Solar System
Center of our solar system.
What is the Sun?
Phase when the entire moon is illuminated.
What is a Full Moon?
Clouds where stars form.
What is Nebula?
Galaxy containing our solar system.
What is the Milky Way?
Theory explaining how the universe began.
What is the Big Bang Theory?
Closest planet to the Sun,
What is Mercury?
Eclipse when the Earth blocks sunlight from the Moon.
What is a Lunar Eclipse?
Stage where a star spends most of its life.
What is Main Sequence?
Galaxy shape of the Milky Way.
What is Spiral?
Approximate age of the Universe.
What is 13.8 billion years ago?
Rocky planets also known as the Inner Planets.
What are the Terrestrial Planets?
The FORCE of attraction between two objects with mass.
What is Gravity?
An object with gravity so strong that not even light can escape.
What is a Black Hole?
Large collection of stars held together by gravity.
What is a Galaxy?
A massive ball of hot gases that produces its own light and energy through nuclear fusion.
What is a Star?
Large gas and ice giants also known as the Outer Planets.
What are the Jovian Planets?
Eclipse when the Moon blocks sunlight from Earth.
What is Solar Eclipse?
A massive EXPLOSION that occurs when a large star dies.
What is a Supernova?
Light from distant galaxies shifts toward the red end of the spectrum, indicating they are moving away.
What is the Red Shift?
One form of evidence that supports the Big Bang Theory.
What is Red Shift or Cosmic Microwave Background Radiation?
Cloud of gas and dust from which the solar system formed.
What is the Solar Nebula?
An object that naturally orbits a planet.
What is the Moon?
A graph that compares stars based on their brightness (luminosity) and surface temperature.
What is the H-R(Hertzsprung-Russel) Diagram?
The three types of of Galaxies.
What are Spiral, Elliptical, and Irregular?
Weak radiation left over from the early universe.
What is Cosmic Microwave Background Radiation?