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Astronomy Grade 2-3 Answer Key

Astronomy: Our Solar System: 8 Planets in Order

Learn the order of the planets from the Sun

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Astronomy: Our Solar System: 8 Planets in Order

Learn the order of the planets from the Sun

Astronomy - Grade 2-3

Instructions: Read each problem carefully. Use the order of the planets from the Sun to answer each question.
  1. 1

    Write the 8 planets in order from the Sun.

    Start with the planet closest to the Sun.

    The 8 planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
  2. 2

    Fill in the missing planet: Mercury, _____, Earth, Mars.

    The missing planet is Venus because Venus is the second planet from the Sun.
  3. 3

    Which planet is 4th from the Sun?

    Count Mercury as 1, Venus as 2, and Earth as 3.

    Mars is the 4th planet from the Sun.
  4. 4

    Which planet is closest to the Sun?

    Mercury is closest to the Sun.
  5. 5

    Which planet is farthest from the Sun?

    It is the 8th planet in order.

    Neptune is farthest from the Sun.
  6. 6

    Put these planets in order from the Sun: Earth, Mercury, Mars, Venus.

    The planets in order from the Sun are Mercury, Venus, Earth, and Mars.
  7. 7

    What planet comes between Earth and Jupiter?

    Say the order slowly: Mercury, Venus, Earth, Mars, Jupiter.

    Mars comes between Earth and Jupiter.
  8. 8

    What number planet is Saturn from the Sun?

    Saturn is the 6th planet from the Sun.
  9. 9

    Is this sentence true or false? Neptune comes before Uranus in the order of the planets.

    Think about the last two planets in order.

    The sentence is false. Uranus comes before Neptune, and Neptune is the 8th planet.
  10. 10

    Write a silly sentence to help you remember the order: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

    One possible sentence is: My Very Excited Mother Just Served Us Noodles. Each first letter matches a planet in order.
  11. 11

    Label the planets in this diagram from closest to farthest from the Sun.

    The first planet is Mercury and the last planet is Neptune.

    The labels should be Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune from closest to farthest from the Sun.
  12. 12

    Rewrite these planets in the correct order from the Sun: Jupiter, Neptune, Mercury, Earth, Saturn, Venus, Uranus, Mars.

    The correct order is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
  13. 13

    Name the two planets that are next to Earth in the solar system order.

    Earth is the 3rd planet from the Sun.

    Venus and Mars are next to Earth in the solar system order.
  14. 14

    Write the outer 4 planets in order from the Sun.

    The outer 4 planets in order from the Sun are Jupiter, Saturn, Uranus, and Neptune.
  15. 15

    Fill in the blanks: The 2nd planet is _____, and the 7th planet is _____.

    Count from Mercury as the 1st planet.

    The 2nd planet is Venus, and the 7th planet is Uranus.
  16. 16

    Which planet is closer to the Sun, Mars or Neptune?

    Mars is closer to the Sun because Mars is the 4th planet and Neptune is the 8th planet.
LivePhysics™.com Astronomy - Grade 2-3 - Answer Key