WONDER #1077: What Is the Hottest Planet?
Question 1 of 3
Which planet is often called Earth’s sister?
Question 2 of 3
Which planet is closest to the Sun?
Question 3 of 3
Mercury would probably be the hottest planet if it had what?
Check your answers online at https://www.wonderopolis.org/wonder/What-Is-the-Hottest-Planet.