What is a galaxy?, A star city, A moon rock, A single planet, A group of clouds only, What do galaxies contain?, Only sand, Only water, Only clouds, Stars and gas, What can galaxies look like?, Squares, Spoons, Circles, Spirals, What helps hold a galaxy together?, Wind, Sound, Gravity, Light switches, What is the name of our galaxy?, Andromeda, Milky Way, Earth Ring, Sun Galaxy, How many stars are there in our galaxy, approximately?, 100–400 thousands stars, 100–400 million stars, 100–400 stars, 100–400 billion stars, What is a light-year?, The distance light travels in one year., The distance we travel in a galaxy., The time it takes to travel in a galaxy., How long it takes to form a galaxy., How fast is light?, 300,000 km every second, 30,000 km every second, 3,000 km every second, 300 km every second, Why do we measure in light-years?, Because it's more fun., Because it's too big for kilometers., How big is our galaxy in light-years?, about 100,000 light-years across, about 220,000 light-years across, Which galaxy is close to the Milky Way?, Sombrero, Whirlpool, Triangulum, Andromeda

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