Mini Challenges!
New inventive challenges posted each week
299
Leaf it out
Invent a way to keep leaves off the train tracks
Check out some other challenges
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139
Roll with the waves
Draw a machine that harvests energy made by the seas waves
83
Sunny side
Make a sunburst cardboard sundial clock
82
Keepin' cool
Design clothes for animals and people that helps to keep them cool in the heat
154
Perfect plant
Invent a new species of plant
103
Under pressure
Invent something that can reduce stress