This is the water filter that I made in science class.

The challenge is to make a water filter to survive on an island.

I think engineering is important because you can make things to make life easier.

I design this water filter because I searched for water filters online. It worked pretty well.  I will remove the sand and add another layer of cotton balls if I could do this again.

Our challenge is that the water filter is not doing anything.

Material used:

-cloth

-little rocks

-sand

-tape

-plastic bottle

-screen