GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The planets are evenly spaced out.
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The inner planets are far apart, but the outer are closer together.
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The farther you get from the sun the more distance between the planets.
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None of the above
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Detailed explanation-1: -An accurate portrayal of the Solar System shows that the orbits of the planets are spaced further apart as distance from the Sun increases. For example, the orbits of Saturn and Neptune are further apart than the Earth and Venus. This observation was well known by the eighteenth century.
Detailed explanation-2: -Explain to students that an astronomical unit, or AU, is a simplified number used to describe a planet’s distance from the sun. It is a unit of length equal to the average distance from Earth to sun, approximately 149, 600, 000 kilometers (92, 957, 000 miles).
Detailed explanation-3: -Astronomical units, abbreviated AU, are a useful unit of measure within our solar system. One AU is the distance from the Sun to Earth’s orbit, which is about 93 million miles (150 million kilometers).
Detailed explanation-4: -The eight planets in our solar system each occupy their own orbits around the Sun. They orbit the star in ellipses, which means their distance to the sun varies depending on where they are in their orbits.