The Universe

The most commonly accepted theory that explains the beginning of our known universe is the -

• Theory of Evolution
• Big Bang Theory
• Cell Theory
• Blackhole theory

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Gravity is the force objects put on each other because of their ______.

• mass
• friendliness
• acceleration
• speed

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Select a possibility of what will happen to the universe in the future.

• The universe will be destroyed by aliens.

• The universe may expand forever, therefore galaxies will continue to get further away from each other.

• The universe will explode.

• We don't have any hypothesis.

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Space and all the matter and energy in it.

• Space
• Solar System 
• Universe
• Sun

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The sun and all of the planets and other bodies that travel around it. 

• Universe 
• Galaxy 
• Star
• Solar System 

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A relatively large spherical body that orbits a star.

• Star 
• Planet
• Moon 

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A collection of stars, dust, and gas bound together by gravity.

• Nebula
• Galaxy 
• Universe
• Protostar

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Which of the following is the largest?

• star
• universe
• cluster
• galaxy

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Light Years are a measure of - 

• time
• speed
• distance
• light

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What does the Big Bang theory suggest?

• The universe was just there
• The Milky Way is the only solar system
• The universe is continually expanding
• The universe started as a point, expanded, and will return to a point

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