Unit 5 Solar System

What type of galaxy is shown in the illustration?

• spiral galaxy
• dwarf galaxy
• elliptical galaxy
• irregular galaxy

Which choice best describes the parts of the Milky Way?

• Earth, it's moon, the sun, and Jupiter
• gas, dust, stars, and objects that orbit stars
• asteroids, comets, objects that orbit stars, and the Sun
• the inner planets, the outer planets, gas, and dust

Which planet has a rocky surface (terrestrial planet)?

• Neptune
• Jupiter
• Saturn
• Mercury

Which of these planets is most like Earth?

• Jupiter
• Venus
• Neptune
• Mars

Which choice below gives the correct order of planets from the Sun?

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
• Earth, Mars, Venus, Jupiter, Mercury, Saturn, Neptune, Uranus
• Mars, Venus, Earth, Saturn, Mercury, Uranus, Jupiter, Neptune
• Uranus, Jupiter, Neptune, Saturn, Mercury, Venus, Mars, Earth

What do Jupiter, Saturn, Uranus, and Neptune have in common?

• They all have rocky surfaces.
• They all appear to be similar to Earth.
• They all are gaseous planets.
• They all appear to be made of rock and ice.

What is an object in the Solar System that is a frozen mass of ice and dust?

• an asteroid
• a comet
• a moon
• a planet

A _________ is a huge system of gas, dust, stars, and objects orbiting stars that is held together by the force of gravity.

• Milky Star
• sky
• galaxy
• Star Way

Which planet is an inner planet?

• Mars
• Uranus
• Saturn
• Neptune

Which planet is the Solar System's largest, rocky planet?

• Mars
• Earth
• Mercury
• Jupiter