Celestial Objects and Big Bang theory — task. Science State Board, Class 7.

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Choose the best answers.

1. What is an epicycle supposed to explain?

The four seasons
Phases of the Moon
Earth's rotation axis
Retrograde motion of the planets

2. What does the Big Bang Theory say?

all the matter in the universe exploded from a tiny and dense point
two galaxies collided to form universe
the universe is collapsing and getting smaller

3. Epicycle model is used to explain the variations in

and

of the celestial objects

Answer variants:

Direction

Distance

Axis

Speed

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