Volcanoes, Earthquakes, and Tidal worksheets-http://www.learnersplanet.com/grade-5/cbse-icse-ncert/science/volcanoesearthquakes-and-tidal-waves/practice-tests Volcanoes, earthquakes and tidal waves. hurricane, tsunami, landslide, why do natural disasters happen ? What are their consequences ? Visit us for free worksheets, study material for... Read more »