The Universe

All matter and space that exists is called the

• galaxy

• planetary system

• universe

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A cluster of stars, dust, gas and matter is a

• galxay

• planetary system

• universe

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Planets orbit around a star (like the Sun), because of gravity is called

• galaxy

• planetary sytem

• universe

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What is the name of the scientific theory that explains how the universe was created?

• The Balloon Theory

• The Big Bang Theory

• The Small Bang Theory

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The majority of the universe is made of

• dark enegy

• dust

• oxygen

A bright, shiny sphere of plasma (very hot gas) is called

• moons

• stars

• planets

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A round and massive object that orbits around a star. They can be made of rocks, gasses, or gas and ice.

• moons

• stars

• planets

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An object that orbits a planet is called a

• moon

• sun

• planet

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Our solar system formed from

• an exploded star

• a cloud of gas and dust

• a black hole

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What force helped with the formation of the sun and planets?

• Electricty

• Magnets

• Gravity

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