TASK 1 SPEAKING TEST 6 (SEMESTER 2) (UNITS 11 & 12) Let's talk about our solar system. The following questions may help you. 1. How many planets are there in our solar system? 2. What is the order of the planets from the sun? 3. What planet is called the Red planet? 4. What planet is the smallest/biggest in our solar system? 5. What planet is the hottest/coldest in our solar system?