Test your knowledge of the Solar System 1 / 10 What is a comet? A planet’s moon A celestial object made of ice, dust, and rock that develops a glowing coma and tail near the Sun A meteor A type of asteroid 2 / 10 Which planet rotates on its side? Venus Neptune Saturn Uranus 3 / 10 What is the Sun mostly made of? Oxygen and nitrogen Iron and nickel Carbon dioxide Hydrogen and helium 4 / 10 Which planet is known for its extreme greenhouse effect? Venus Mars Neptune Earth 5 / 10 Which planet has the most moons? Jupiter Earth Saturn Uranus 6 / 10 What is the name of the largest moon of Saturn? Europa Ganymede Titan Callisto 7 / 10 What causes the variation in planetary magnetic fields within the solar system? Differences in the planetary core compositions and their rotational speeds. The distance from the Sun. The planet's atmosphere. Variations in solar wind pressure. 8 / 10 What is the smallest planet in the solar system? Mercury Pluto Mars Venus 9 / 10 How do astronomers measure the mass of a planet in the solar system? By studying its atmosphere. By measuring its size. By observing its magnetic field. By observing the gravitational effects the planet has on nearby objects, like moons or spacecraft. 10 / 10 Which planet has the Great Red Spot, a giant storm? Neptune Jupiter Saturn Mars Your score isThe average score is 95% 0% Restart quiz
