Test your knowledge of the Solar System 1 / 10 What is a comet? A celestial object made of ice, dust, and rock that develops a glowing coma and tail near the Sun A type of asteroid A meteor A planet’s moon 2 / 10 Which planet has the most moons? Uranus Earth Jupiter Saturn 3 / 10 What is the smallest planet in the solar system? Mars Mercury Venus Pluto 4 / 10 What causes the variation in planetary magnetic fields within the solar system? Variations in solar wind pressure. The planet's atmosphere. The distance from the Sun. Differences in the planetary core compositions and their rotational speeds. 5 / 10 What is the name of the largest moon of Saturn? Europa Titan Ganymede Callisto 6 / 10 How do astronomers measure the mass of a planet in the solar system? By measuring its size. By studying its atmosphere. By observing the gravitational effects the planet has on nearby objects, like moons or spacecraft. By observing its magnetic field. 7 / 10 Which planet rotates on its side? Venus Neptune Saturn Uranus 8 / 10 What is the Sun mostly made of? Hydrogen and helium Carbon dioxide Iron and nickel Oxygen and nitrogen 9 / 10 Which planet is known for its extreme greenhouse effect? Neptune Venus Mars Earth 10 / 10 Which planet has the Great Red Spot, a giant storm? Jupiter Neptune Saturn Mars Your score isThe average score is 76% 0% Restart quiz
