A large grouping of stars
This system states the sun is the center of the solar system.
The step in the scientific method that asks if the hypothesis was correct.
The basic unit of length/distance in the SI system.
The theory that explains what some scientists believe is the beginning of our universe.
Scientists think the universe will continue to do this.
The name of our galaxy is......
The step of the scientific method that asks "What do you want to know"?
the basic unit of mass in the SI system.
A large cloud of dust and gas in space.
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