Question

A 2 column by 2 row table. Column 1 is titled Planet with the following entries: A, B. Column 2 is titled Length of a Day in hours with the following entries: 16 hours, 1,408 hours.
Which planet is an inner planet, and which one is an outer planet? Explain your answer.

Answer 1

Answer:

sample response:

Planet A is an outer planet, and planet B is an inner planet. Inner planets rotate slowly, so they take more time to complete a rotation. Outer planets rotate faster, so they take less time to complete a rotation.

Explanation:

Answer 2

Planet A is an outer planet and planet B is an inner planet because planet A has a shorter spin.

What are outer planets?

There are four outer planets in our solar system with a density of fewer than 2 grams per cubic centimetre. Jupiter and Saturn are composed primarily of helium and hydrogen and Uranus and Neptune are composed of ice, rock, hydrogen and helium.

These four outer planets have longer orbits and take a longer time to revolve around the sun. These have shorter spins and therefore the length of their day is shorter.

Also, since the outer planets are extremely large in size and are mostly composed of gases, they are also called gas giants.

Another characteristic feature of these planets is the presence of a planetary ring around the planet.

The inner planets are denser. They have shorter orbits and require less time to revolve around the sun. The inner planets have a longer spin time and thus their days are longer.

A day on Mercury is 1408 hours and a day on Neptune is 16 hours.

Therefore, planet A is an outer planet and planet B is an inner planet.

Read more about planets, here

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