Gr 8 Natural Sciences Ch 4.1: Objects around the Sun
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Questions and Answers

What is characteristic of comets?

  • They are found in the inner solar system
  • They have a thin atmosphere
  • They develop visible tails when they approach the Sun (correct)
  • They are large and rocky

Which planet has extreme temperature variations?

  • Mercury (correct)
  • Earth
  • Mars
  • Venus

Which planet has the most moons in the solar system?

  • Neptune
  • Uranus
  • Jupiter (correct)
  • Saturn

What is unique about the rotation of Venus?

<p>It rotates in the opposite direction to most planets (C)</p> Signup and view all the answers

What is the color of Neptune's atmosphere?

<p>Blue (D)</p> Signup and view all the answers

What is Saturn known for?

<p>Its stunning ring system (C)</p> Signup and view all the answers

What is the main characteristic of a terrestrial planet?

<p>Having a solid, rocky surface (D)</p> Signup and view all the answers

What is the primary difference between a gas giant and a terrestrial planet?

<p>Composition (D)</p> Signup and view all the answers

What type of objects are primarily found in the asteroid belt between Mars and Jupiter?

<p>Asteroids (C)</p> Signup and view all the answers

What is a characteristic of a dwarf planet?

<p>Being spherical in shape (C)</p> Signup and view all the answers

Which planet has a unique atmosphere with abundant oxygen to sustain life?

<p>Earth (B)</p> Signup and view all the answers

What is a characteristic of the gas giant Jupiter?

<p>Having a thick atmosphere with metallic hydrogen (D)</p> Signup and view all the answers

What is the main difference between asteroids and Kuiper Belt Objects?

<p>Location (C)</p> Signup and view all the answers

What is the approximate percentage of the solar system's total mass that the Sun comprises?

<p>98% (B)</p> Signup and view all the answers

What is the primary purpose of interactive simulators and 3D environments for exploring the solar system?

<p>To visualize the relative positions and movements of celestial bodies (C)</p> Signup and view all the answers

What is a characteristic of the planet Mars?

<p>It has the largest volcano and canyon in the solar system (D)</p> Signup and view all the answers

What is unique about the planet Uranus?

<p>It has a mantle of water, ammonia, and methane (C)</p> Signup and view all the answers

What is a characteristic of Jupiter?

<p>It has a low density and could float in water (B)</p> Signup and view all the answers

What is a characteristic of Neptune?

<p>It has intense storms and strong winds (D)</p> Signup and view all the answers

What is a characteristic of Earth?

<p>It is the only known planet to support life (D)</p> Signup and view all the answers

What is the primary reason why the planets and other objects in the solar system remain in orbit around the Sun?

<p>The Sun's massive gravitational pull (C)</p> Signup and view all the answers

What is the primary difference between the terrestrial planets and the gas giants?

<p>Their size and composition (C)</p> Signup and view all the answers

Which of the following celestial bodies is NOT categorized as a planet?

<p>Pluto (D)</p> Signup and view all the answers

What is the common characteristic of the objects found in the Kuiper Belt?

<p>They are primarily made of ice (B)</p> Signup and view all the answers

What is the characteristic of the atmospheres of gas giants?

<p>They are thick and contain metallic hydrogen (D)</p> Signup and view all the answers

What is the common characteristic of the terrestrial planets?

<p>They have solid, rocky surfaces and metallic cores (C)</p> Signup and view all the answers

What is the characteristic of asteroids?

<p>They are small and rocky (A)</p> Signup and view all the answers

What is the characteristic of dwarf planets?

<p>They are similar in size to planets but have not cleared their orbits of other debris (C)</p> Signup and view all the answers

What is the primary reason why comets develop visible tails when they approach the Sun?

<p>Because of the heat evaporating their ices (A)</p> Signup and view all the answers

Which planet has the highest average temperature?

<p>Venus (D)</p> Signup and view all the answers

What is the primary purpose of the distance from the Earth to the Sun being used as a standard astronomical unit?

<p>To standardize the measurement of distances in our solar system (D)</p> Signup and view all the answers

What is the primary reason why Uranus rotates on its side?

<p>As a result of a past collision (A)</p> Signup and view all the answers

What is the characteristic of the storms on Neptune?

<p>They are intense and strong-winded (B)</p> Signup and view all the answers

What is the primary benefit of using interactive simulators and 3D environments to explore the solar system?

<p>To visualize the relative positions and movements of celestial bodies (A)</p> Signup and view all the answers

What is the primary reason why the terrestrial planets are smaller in size compared to the gas giants?

<p>They have a higher density composition. (A)</p> Signup and view all the answers

Which of the following is a characteristic shared by both asteroids and Kuiper Belt objects?

<p>They are small in size. (C)</p> Signup and view all the answers

What is the primary difference between the atmospheres of terrestrial planets and gas giants?

<p>The composition of the atmosphere. (C)</p> Signup and view all the answers

Which type of celestial body is characterized by being unable to clear its orbit of other debris?

<p>Dwarf planets (C)</p> Signup and view all the answers

What is the primary reason why the gas giants are able to maintain their massive size?

<p>They are primarily composed of gas. (D)</p> Signup and view all the answers

What is the characteristic that distinguishes the terrestrial planets from the gas giants in terms of their cores?

<p>Composition (B)</p> Signup and view all the answers

What is the primary similarity between the terrestrial planets and the gas giants in terms of their orbits?

<p>They are all in orbit around the Sun. (B)</p> Signup and view all the answers

What is the characteristic that distinguishes the Kuiper Belt objects from the asteroids in terms of their composition?

<p>Rocky versus icy (B)</p> Signup and view all the answers

What is the main reason why the planets and other objects in the solar system remain in orbit around the Sun?

<p>The Sun's immense mass exerts a powerful gravitational pull. (A)</p> Signup and view all the answers

Which of the following statements is true about the asteroids and Kuiper Belt objects?

<p>Asteroids are small and rocky, while Kuiper Belt objects are large and icy. (A)</p> Signup and view all the answers

What is a characteristic that distinguishes the terrestrial planets from the gas giants?

<p>They have solid, rocky surfaces with metallic cores. (B)</p> Signup and view all the answers

What is the primary difference between the atmospheres of terrestrial planets and gas giants?

<p>Terrestrial planets have atmospheres primarily composed of oxygen, while gas giants have atmospheres primarily composed of hydrogen and helium. (C)</p> Signup and view all the answers

Which of the following statements is true about the dwarf planets?

<p>Dwarf planets are unable to clear their orbits of other debris. (A)</p> Signup and view all the answers

What is the primary reason why the terrestrial planets are smaller in size compared to the gas giants?

<p>They have weaker gravitational forces (B)</p> Signup and view all the answers

What is the characteristic of the planet Mars that distinguishes it from other planets?

<p>It has a reddish appearance due to its iron-rich surface (B)</p> Signup and view all the answers

What is the characteristic of interactive simulators and 3D environments used to explore the solar system?

<p>They provide detailed views of celestial bodies (A)</p> Signup and view all the answers

What is the primary reason why the gas giants are able to maintain their massive size?

<p>They have stronger gravitational forces (A)</p> Signup and view all the answers

What is the characteristic of the storms on Neptune?

<p>They are highly intense (A)</p> Signup and view all the answers

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