What did the word planet originally mean?
Remember, if you don't know- go find the answer! Here is the link to the video so you can find out :) Mystery 6 Video
What invention changed how we think about planets? What did it do?
Which planet moves more slowly across the sky: Saturn or Mars? How do you know?
How can you tell the difference between a star and a planet in the sky?
What planets can be seen tonight after sunset? For this question, you'll need to visit a website: http://mysterysci.blogspot.com/