You need duck eggs and an incubator. See discussion.
the ducks hatch in the spring normaly in the 2nd week
In eggs
Wild ducks certainly do and many farms have ducks that set eggs each spring but there are hatcheries that incubate duck eggs just as most chickens are produced in a hatchery.
21 to 30 days
patterning
Humans frequently do hatch the eggs of ducks and other birds (and reptiles) using incubators.
Nah, they're fluffy and fuzzy, search the image
patterning
patterning
A volcano or Christal
structures
A science fair logbook is just a notebook where you keep track of the work you have done on your science fair project.