

Mercúrio é o planeta mais pequeno do sistema solar.
Durante o dia, faz imenso calor em Mercúrio.
Sabias que Mercúrio é o planeta mais perto do Sol?
"Mercúrio" is in the lesson "Space" (Level 25), along with 15 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.