Matching Pairs Planets Online version Study characteristics of the planets by Bethaney Barber 1 Hottest planet with thick atmosphere, high mountains, and volcanoes 2 Largest Planet, has a great red spot and many moons 3 What are Saturn's rings made of? 4 the smallest planet and the nearest to the sun 5 What 2 planets are ice giants? 6 Called the "red planet" because of its red surface and has seasons like earth 7 What planets are terrestrial planets? 8 What 2 planets are gas giants? Mars Mercury Venus Jupiter Uranus and neptune Mercury, Venus, Earth, Mars chunks of ice and rock Jupiter and Saturn