Halley’s comet is such a big part of SELLING HOPE, it’s practically a character itself! In fact, Kristin Tubb says it was researching Halley’s comet for a workbook about space that she wrote that planted the original seed for SELLING HOPE.
There are lots of comets barrelling through space, but Halley’s comet is special because it is the only short period comet visible to the naked eye. A short period comet is one with an orbit lasting less than 200 years. Halley’s orbit length is 75-76 years, making it the only known comet that one could potentially see twice in a lifetime!
We’ve created a game where you’ll have a chance to learn a little more about comets, while reviewing some trivia questions from the book SELLING HOPE! The game is simple and only requires a few printables.
Here are a few additional resources if you’d like to explore even more about comets:
- Comet Facts, Myths and Legends from The Space Telescope Science Institute
- Basic comet information, along with some very nice printable worksheets from Enchanted Learning
Finally, here’s a very good demonstration video of a person making a model comet with dry ice that is a great visual aid in understanding what comets are made of and how the ice sublimates and forms the tail when it comes nearer to the sun. If you’d like to make one yourself, here is the recipe with instructions.