Water pollution
6th
grade class: water pollution and depuration
Sewage treatment plant Solutions to not contaminate wàter so much
Types of wáter and contaminants
5th
grade class: water and pollution
Worksheet to do after the presentation
http://www....
More
Water pollution
6th
grade class: water pollution and depuration
Sewage treatment plant Solutions to not contaminate wàter so much
Types of wáter and contaminants
5th
grade class: water and pollution
Worksheet to do after the presentation
http://www.
youtube.
com/watch?
v=X1rP1t6Epmw&feature=youtu.
be
http://www.
youtube.
com/watch?
v=9c7mQDP-k5Y&feature=youtu.
be
http://www.
youtube.
com/watch?
v=nweDHpbDIls&feature=youtu.
be
Less
