The thermosphere hosts space shuttles and satellites!
I hope this helps!!
One should have the right tool in teaching.As one select a tool to know if it is formal or informal it will help someone to direct one's assessment toward children's interests. Hope this is the right answer and would be of help.
When i was little, when id go to the doctor, they'd always explain to me how to wash my hands properly. Start by turning on loop warm water then proceed with putting soap in your hands. Rub around all corners of your hands. Get in between your fingers and try to get under your nails.
The first step would be to turn on the water, IF your going step by step.
Have a great day!