straw rafts

In inquiry we are learning about the design process. The design process is where you plan,design and test a product or theory. Sometimes when you test it doesn't work  and you have to start at the beginning again to see how you would make it better. Mrs mcg gave us a challenge. We had to plan design+build a straw raft to float with 40g of weight on it we could only use 20 straws ad our raft failed 5 times because we didn´t put them in a state line.We did some research about how rafts float and we found that you need to have no gaps in your raft.We  found the challenging we didn´t get it done.