Earth and Space

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

Tags

NGSS.MS-ESS1-3

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

• a moon

• a comet

• a planet

• a galaxy

Which two planets are most similar in their composition?

• Earth and Mars

• Venus and Saturn

• Venus and Jupiter

• Earth and Neptune

Which of the following explains why Sirius can be seen without a telescope?

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

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

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

• (D) 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

Which planet has many moons?

• Mars

• Earth

• 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.

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

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

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

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

• D. 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.