5th and 6th GRADE from CATALONIA to FRANCE

Imagine you are enjoying a safari in Africa with your family. Suddently you get lost in the middle of the jungle. 

You have been walking for a lot of hours looking for some food and water. You are afraid because you can not find your way to the hotel. 

Two days later, starving and thirsty you find a river.

- OOhh, perfect, drinking just water I could live for 5 more days. - You think. 

But be careful, sometimes appearances are deceptive... this water is not sanitated so it can be dangerous for your health. 

Would you find the way to make it in to drinking water and survive in the jungle?

Good luck and stay safe and sound!

The investigations made in France

We have made been thingking about the subject in differents steps :
1) Our hypothesis :

2) Research solutions on the internet

3) Build a water filter with cotton, coark, small stones and sand.