Test on the planets Versión en línea Test on the planets por Susana López 1 It is the closet planet to the Sun, but it's not the hottest because it has no atmosphere to trap heat. It doesn't have satellites either. Respuesta escrita 2 It is the hottest planet because its dense atmosphere of carbon dioxide. It doesn't have any satellites. Respuesta escrita 3 It's satellite is the Moon Respuesta escrita 4 It looks red because it has a very high iron content. It has two satellites. Respuesta escrita 5 It's the biggest planet. We know 79 satellites. Respuesta escrita 6 It's the second biggest planet. It has a system of rings made of ice and 62 satellites that we know of. Respuesta escrita 7 It is the third biggest planet in the Solar System. It also has a system or rings made of ice an rock. It has 27 satellites. Respuesta escrita 8 It is the planet furtherst from the Sun . It has 14 satellites that we know of. Respuesta escrita