Juan Daniel’s
Fútbol Frog
An Engineering Adventure
Meredith Bauer
Courtney Peters
The Story
 Juan
Daniel loves to play fútbol
 He lives near El Imposible in El Salvador
 El Imposible is an endangered rainforest
 During a soccer game, he finds a frog
 The frog becomes a “lucky charm”
 Challenge: keep frog healthy until
Championship game
The Challenge
 Create
an environment for the frog
 Build a model membrane that
allows water in
 Keep water at constant drip
 Water should not flood the frog
 The frog should always be wet
The Process
1.
2.
3.
4.
5.
6.
7.
Poked hole in cup; created our sponge
frog
Filled cup with cotton balls
Covered bottom of cup with plastic wrap
Poke holes in plastic wrap
Place frog in container
Place mesh over top of container
Pour water through the membrane
device
Problems We Faced
 Not
enough cotton balls (started
with 0)
 Holes were too big in plastic wrap
 Pouring the water into a small hole
 Getting the amount of water
correct
 Flowed too fast
 Flowed too slow/got stuck in cup
Improvements
 Filled
cup completely with cotton
balls
 Used fine-point wire to poke holes
 Used a pitcher with a spout to pour
Future Improvements
 Use
wire mesh instead of cloth mesh
 Find a way to cut a bigger hole in the cup
 Try different materials that were not
available
 Use materials that weren’t suggested in
book
 Use more natural materials
 Leaves
 Grass
 Rocks
Pictures
Pictures
Engineering Design Process
 Ask:
How do we keep the frog wet?
 Imagine: Different materials
 Plan: Created the design
 Create: Built the membrane device
 Improve: More cotton balls, future
possibilities