Questioning is a highly effective strategy that has the potential to successfully engage students. Questioning a particular student about an aspect of a lesson prompts the attention of that student as well as most of the students in close proximity.
Food scientist Vickie Kloeris makes meals for astronauts. Vickie Kloeris' job is to feed those astronauts. As one of NASA's top food scientists, she manages the agency's food laboratory as well as the ISS's food system, making sure everyone onboard has plenty to eat and a varying menu.
Space may be a giant airless vacuum, but astronauts swear that it has an odor. Those who have sniffed the aroma liken it to burning metal, steak, and welding, among other peculiar olfactory memories. Space has its own unique smell, NASA astronaut Scott Kelly said in PBS' Year in Space documentary.