3.- MATTER SYSTEMS

1. STATES OF MATTER (PhET Simulator)
2. SEPARATE A MIXTURE OF WATER AND SAND

Do you know how to separate water and sand? In this short and interesting VIDEO you can find it out. Download its accompanying  WORKSHEET.

     3.- How do fish "breathe" underwater? The answer is... oxygen! 

Watch this video to:
1) to find out how oxygen gets into water!and

2) working with a partner, prepare a short report about what factors affect the solubility of oxygen in water. Make sure that you explain the meaning of the word "eutrophication".

     4.- RAGS TO RICHES: Answer questions about matter and changes in this quest for fame and fortune