1. Which four planets are known as the outer planets?

Jupiter, Saturn, Uranus, Neptune Mercury, Venus, Earth, Mars The Sun, Moon, Mercury, Venus Earth, Mars, Jupiter, Saturn

2. Why are Jupiter, Saturn, Uranus, and Neptune called 'Gas Giants' (or Ice Giants)?

They are made of solid rock like Earth They are the smallest planets in the solar system They do not orbit the sun They are massive balls of swirling gases and liquids without a solid crust

3. Which planet is the largest in the solar system?

Saturn Neptune Jupiter Uranus

4. What is Jupiter's Great Red Spot?

A solid red mountain A giant, long-lasting storm wider than Earth A moon orbiting Jupiter A ring made of red dust

5. What are Saturn's rings mostly made of?

Billions of pieces of ice, dust, and rock Solid metal Liquid water only Clouds of red gas

6. Why would Saturn float if you found a swimming pool big enough to hold it?

Because it has no mass at all Because it is the smallest planet Because it is made mostly of hydrogen gas, making it very light for its size Because it has a solid rock core

7. What makes Uranus unique compared to the other planets?

It has no moons at all It spins on its side, rolling around the sun like a bowling ball It is the closest planet to the sun It is made entirely of solid rock

8. Which planet is known as the coldest and windiest planet, located the furthest from the sun?

Jupiter Saturn Uranus Neptune

9. About how long does it take Neptune to complete one trip around the sun?

1 Earth year 12 Earth years 165 Earth years 500 Earth years

10. Why do you think the outer planets are made of gas and ice, while the inner planets closer to the sun are made of hard rock?

The outer planets are actually closer to the sun than the inner planets The outer planets receive far less heat from the sun, allowing gases and ices to remain rather than evaporating Gas and ice materials are heavier than rock, so they sank further from the sun There is no real reason; it happened completely by random chance