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Suppose a student develops a scale model of the planets. Which two planets should be the closest in diameter on the model? Comparison of Planet Size Planet Diameter (km) Mercury 4,800 Venus 12,100 Earth 12,800 Mars 6,700 Jupiter 143,000 Saturn 120,000 Uranus 51,100 Neptune 50,000 (1 point) Responses Mercury and Neptune Mercury and Neptune Mars and Jupiter Mars and Jupiter Uranus and Saturn Uranus and Saturn Earth and Venus Earth and Venus

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To determine which two planets should be the closest in diameter on the model, let's look at the provided planet diameters:

  1. Mercury: 4,800 km
  2. Venus: 12,100 km
  3. Earth: 12,800 km
  4. Mars: 6,700 km
  5. Jupiter: 143,000 km
  6. Saturn: 120,000 km
  7. Uranus: 51,100 km
  8. Neptune: 50,000 km

Now, we'll find the planets with the closest diameters:

  • Uranus (51,100 km) and Neptune (50,000 km): The difference is 1,100 km.
  • Earth (12,800 km) and Venus (12,100 km): The difference is 700 km.
  • Mars (6,700 km) and Mercury (4,800 km): The difference is 1,900 km.
  • All other planet pairs have larger differences in diameter.

From the comparisons, the closest diameters are Earth and Venus, with a difference of 700 km.

Therefore, the answer is: Earth and Venus.