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The Universe, Parts & Evidence

Name:___________________________________

Date: _____/_______/______ Class: _________
 
Across
All the materials needed to build planets moons and stars are found in this cloud
The change toward longer wavelengths on the visible light spectrum
A galaxy with a bulge in the middle and arms that move out like a pinwheel
Occurs on the surface of the sun involves hydrogen and helium fusing together
Formed after the SUN with less dense left over materials
A galaxy with the appearance of a round or flat ball
Pulls all matter together
Distance sun's light travels in one year 9.46 trillion kilometers
Waves that can travel without a medium and include visible light
Trough to trough OR crest to crest
Formed after the SUN with dense left over materials
The materials that came together to form the solar system
Down
Theory that an explosion caused the formation of the universe
Number of waves that pass a given point in a second
Newton's law that gravitational attraction depends on the mass and distance between objects
Acronym for colors of visible light from long to short wavelengths
Time it takes for suns light to reach earth (rounded)
Clumps of dust coming together . The beginning of planets
A galaxy without a consistent shape
An increase or decrease in the frequency of sound or light waves
The galaxy in where Earth can be found
Was created approximately 4.6 Billion years ago. Important to us, but just average in the solar system.