Then they did a group invention to try and alter public transportation. Kae's table did a "Bus Train" it's a bus that runs on a solar powered track to save energy, and goes off the tracks for stops and runs on hybrid electric/gas.
Finally she had to invent her own project to make the world a better place. Kae wracked her brain for days, making lists, I hated to break her heart but most of the things she came up with were already invented. She finally settled on a "Home Water Recycler".
The way it works:
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The water that does get used goes through a special set of pipes to a big tank buried under the house. This goes to a filter system with a hose and sprinkler.The water then gets used to water the plants, wash cars, and water the lawn. If the tank gets full, there is an emergency overflow to the regular water main.
I helped, with the ruler making straight lines, the hot glue, and cutting the soda can. But this was all kaeley. And I'm super proud of my little girl. Not just for how smart she is, but being so environmentally conscious at such a young age, and really wanting to make a difference!