to add water to an item, such as food
Sentences:
Astronauts take freeze-dried food into space and
rehydrate the food before eating.
When our bodies are thirsty, we must
rehydrate ourselves by drinking water.
More Information:
http://lsda.jsc.nasa.gov/books/apollo/Resize-jpg/fs6c1-1.jpg →
http://lsda.jsc.nasa.gov/docs/kids/questions/questions.cfm#eat →
http://www.nasa.gov/audience/forstudents/k-4/home/F_No_Pizza_in_Space.html