Unit 5, Solar System

Which features do all inner planets have in common?

• They have rings

• They have moons.

• They have rocky surfaces.

• They have thick atmospheres.

Scientists have discovered an object in another Solar System. The object is massive, gaseous, cold, has rings, and revolves around a star at the center of the system. If the system is similar to our Solar System, which category below best describes the object?

• a comet

• a meteor

• an inner planet

• an outer planet

Look at the picture below. What object does this picture show?

• a moon

• a comet

• a planet

• a galaxy

Tags

NGSS.MS-ESS1-2

Which two planets are most similar in their composition?

• Earth and Mars

• Venus and Saturn

• Venus and Jupiter

• Earth and Neptune

Tags

NGSS.MS-PS1-1

Pierre reads that the brightest star in the sky, Sirius, can be seen by the naked eye but is much farther away than Barnard's Star, which can only be seen with a telescope. Which of the following explains why Sirius can be seen without a telescope?

• Barnard's Star is much larger and hotter than Sirius.

• . Sirius is much larger and hotter than Barnard's Star.

• All stars are the same size, so Sirius must be hotter than Barnard's Star.

• . All stars are the same temperature, so Sirius must be larger than Barnard's Star.

Which of the following is the best description of a galaxy?

• gas, dust, billions of stars, and planets

• gas, dust, a star, and planets that orbit the star

• a planet, moons that orbit the planet, gas, and dust

• a group of planets, moons that orbit planets, gas, and dust

Tags

NGSS.MS-ESS1-2

Which planet has many moons?

• Earth

• Mars

• Jupiter

• Mercury

The Sun is a star, but not the largest star in our galaxy. Which of the following best explains why Earth receives more energy from the Sun than from any other star?

• The Sun is the closest star.

• The Sun is a very young star.

• The Sun is the hottest star in the galaxy.

• The Sun gives off more energy than any other star.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS3-5

Which of the following statements about our galaxy and our Solar System is correct?

• Our galaxy is very small compared to our Solar System.

• Our Solar System includes the Moon, but our galaxy does not.

• Our galaxy has more stars than our Solar System has planets.

• Our Solar System has only the planet Earth, but our galaxy includes many planets.

Tags

NGSS.MS-ESS1-2

Which of the following correctly compares the inner planets of the Solar System to the outer planets?

• The inner planets have rings, while the outer planets do not have rings.

• The inner planets have few or no moons, while the outer planets have many moons.

• The inner planets have longer year lengths, while the outer planets have shorter year lengths.

• The inner planets are composed mostly of gas, while the outer planets are composed mostly of solids.