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.
The device combines powdered ingredients with water and oil on a heated surface to make dough, sauce and a protein-based topping. Astronauts on a mission to Mars -- where a food supply would need to last at least 15 years, according to Systems & Materials -- would be able to print their own meals.