1) What are asteroids mostly made of? a) Gas b) Rock and metal c) Ice 2) Where is the main asteroid belt located? a) Beyond Neptune b) Between Mars and Jupiter c) Between Earth and Mars 3) What shape are most asteroids? a) Cubic b) Perfectly round c) Irregular and lumpy 4) What is the largest asteroid in the asteroid belt? a) Ceres b) Eros c) Vesta 5) What is the difference between an asteroid and a comet? a) There’s no difference b) Asteroids are rocky, comets have ice and tails c) Asteroids are icy, comets are rocky 6) What is a small piece of an asteroid that enters Earth’s atmosphere called? a) Comet b) Satellite c) Meteor 7) Which space agency has a mission to study asteroids up close? a) WWF b) WHO c) NASA 8) What are Near-Earth Asteroids (NEAs)? a) Asteroids found on Mars b) Asteroids that pass close to Earth c) Asteroids that orbit the Moon 9) How old are most asteroids? a) 100,000 years b) 4.6 billion years c) 10 million years 10) What do scientists think caused the extinction of the dinosaurs? a) Earthquake b) Volcanic eruption c) Asteroid impact

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