6.11a

The four planets that orbit closest to the Sun are best described as -

• mostly made up of gases.

• having rings similar to Saturn's.

• having a rocky and terrestrial surface.

• being composed entirely of water.

Planets in the solar system follow an orbital path which is most accurately described as -

• a perfect circle.

• unpredictable in shape.

• more or less elliptical.

• a straight line toward the Sun.

The composition of the Sun is best described as -

• liquid nitrogen and solid magnesium.

• molten rock, primarily iron.

• dense and composed of hot gases.

• lightweight particles of dust.

Tags

NGSS.MS-PS1-1

Scientists discover a relatively small object in an orbital path around the Sun as shown in the diagram. Based on this information, the object is most likely which of the following?

• Star

• Planet

• Moon

• Comet

Tags

NGSS.MS-ESS1-3

Planets vary as they get farther from the Sun. As a rule, the farther a planet's orbit from the Sun, -

• the greater the planet's diameter.

• the longer it takes to orbit the Sun.

• the rockier the surface of the planet.

• the greater the planet's surface temperature.

Tags

NGSS.MS-ESS1-3

What celestial body is the center of our solar system, around which every object orbits?

• Earth

• The Sun

• Jupiter

• The asteroid belt

Tags

NGSS.MS-ESS1-2

Which of the following planets could be accurately described as rocky, terrestrial, and relatively close to the Sun?

• Jupiter

• Neptune

• Mars

• Saturn

The table provides information on various objects in our solar system. Based on the information in the table, which object is most likely a comet?

• A

• B

• C

• C

All of the inner planets share which of the following characteristics?

• Mostly made up of gas

• Contain large amounts of water

• Rocky and terrestrial

• Extremely cold temperatures

A visible streak of light which shows the path of a rocky object which has entered Earth's atmosphere is -

• an asteroid.

• a meteoroid.

• a comet.

• a meteor.