5th grade Inventions 2019

bee hive protector scans for dirty pollen to prevent dirty bee from killing the hive-
schematic-
Scanner to protect bee hive from disease
air bag schematic- softer material
auto compost trash recycle sorter
schematic for auto trash prototype
game
ice protect to save polar bears
tsunami barrier
jettison from plane crash
better fire escape
math for prototype of device that uses CO2