Show:
Electromagnetic Spectrum
Characteristics of Stars
Lives of Stars
Star Systems & Galaxies
The Expanding Universe
100
The distance between the crest of one wave of electromagnetic radiation and the crest of the next one.
What is the wavelength?
100
Patterns of stars in the sky.
What are constellations?
100
This type of galaxy has neutron stars that appear to produce pulses of radio waves.
What is a quasar?
100
When one star in a star system blocks light from another.
What is an eclipsing binary?
100
The age of the solar system.
What is 5 billion years old?
200
Radiation we can see with our eyes.
What is visible light?
200
This is what the Hertzsprung-Russel Diagram graphs.
What are the stars' absolute brightness and temperature?
200
This is the earliest stage of a star's "life."
What is a protostar?
200
A star system with a large grouping of older stars.
What is a globular cluster?
200
The age of the universe.
What is 13.7 billion years old?
300
A range of different colors with different wavelength.
What is a spectrum?
300
This is what a light-year measures.
What is distance.
300
This is what determines how long a star "lives."
What is its mass?
300
A star system containing 2 stars.
What is a binary system?
400
What are forms of energy that can travel through space in the form of waves.
What is the electromagnetic spectrum?
400
Brightness as seen from Earth.
What is apparent brightness?
400
A large cloud of gas and dust.
What is a nebula?
400
These are the 3 main kinds of galaxies.
What are spiral, elliptical, and irregular?
400
This is one piece of evidence for the Big Bang.
What is the amounts of hydrogen and helium in the Universe today are what would be predicted if the Big Bang happened as thought.
500
These are the 7 parts of the electromagnetic spectrum, in order from longest to shortest wavelength.
What are radio, microwave, infrared, visible light, ultraviolet, x-rays, and gamma radiation?
500
These are the coolest stars.
What are red stars?
500
This begins when a star is "born."
What is nuclear fusion?
500
These galaxies contain many young stars.
What are irregular and spiral?