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Solar System Test

Solar System

QuestionAnswer
How many planets are closer to the Sun than the Earth? 2
What determines the length of one year on Earth? The time it takes for the Earth to orbit the Sun.
What tool would you use to view a planet in the night sky? telescope
What does it mean to say that we see a star that is 30 light-years away? It takes 30 years for the light from that star to reach Earth.
Why do the planets and Sun appear to move across the sky? The Earth is rotating
To which of the two main groups of planets does Earth belong? terrestrial planets
What is the main difference between an asteroid and a meteoroid? Size, meteoroid are smaller
What is an Astronomical Unit the average distance between? Sun and Earth
What two factors create the seasons on Earth? The tilt of Earth's axis and its revolution around the Sun
How is the composition of the inner planets different from the outer planets? Inner planets are dense and rocky. Outer planets are made mostly of gases.
Why does the appearance of the Moon change over the course of one month? The moon revolves around the Earth and the Earth revolves around the Sun.
Why does Earth have days and nights? As Earth rotates on its axis, half is facing the Sun while the other half is facing away from the Sun.
Created by: schlanda
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