Wednesday, May 26, 2010

Tuesday, May 25, 2010

NZ Volcanoes

Volcanoes in NZ

Latest NZ Volcanoes
And 1 from NZ's own Mt Ruapehu 1995/1996

So how does erosion work?



If this is how it works in the sea - how does it work in the river??

The River




The Start of the Waikato River



Port Waikato

View Larger Map
Want to learn more on rivers?

Rock Types

We are going to have a look at rock types through using these 2 webquests below.
Discover How Rocks Are Formed
Students will work on these in pairs. Students will need to compile basic research notes as they go - you may choose which format is best for you for note taking.
Add 3 things to rock types vocab list as you go - remember once it's on the vocab list you can't add it again, so search for interesting information that others will enjoy reading!! :-)

Post your notes here

Hinuera ignimbrite

Hinuera ignimbrite (often marketed as Hinuera stone) is a yellow-cream to pale-brown ignimbrite containing angular fragments of pumice in a fine-grained matrix of volcanic ash. It is still quarried today, and widely used for cladding buildings in the North Island.
Andesite
Andesite is a fine-grained, extrusive igneous rock composed mainly of plagioclase with other minerals such as hornblende, pyroxene and biotite. The specimen shown is about two inches (five centimeters) across.

The Rock Cycle