Kepler's LabScience Sort
Animals, plants, and everyday things land in a pile; kids sort each one into the right bin. Three levels move from simple living-or-not sorts to real categories like mammals and reptiles.
What it practices
Categories, observation, and early science vocabulary.
Levels
Three levels - big obvious groups first, finer science categories later.
Good to know
A wrong bin never punishes - the item bounces back with a hint.