Wednesday, 24 June 2015

Leech and nz otter Contrast Habitat


Leech and nz otter Contrast

Habitat

A leech lives in a dark, murky and damp freshwater habitat.

Their  habitats aren't hard to find in other parts of the world.

In the same way both are hard to find in New Zealand. Whereas an otter lives in a freshwater habitat .


Defence


The leech is limited to a few defences. They mainly grab where they cannot be touched or seen and when they have the opportunity they will swiggle off. Unlike an otter that defends themselves with their sharp teeth.  

Desciption


The leech  looks  pitch black and  slimy and  sometimes they can have brown stripes on their body and they can also  be shiny in the sun. In contrast an otter looks fluffy, cuddly  and has dark brown fur as well as sharp claws. Most importantly it has sharp teeth to to protect itself.


Attack


The leech attacks by sucking blood off its predators flesh and draining fluids off the prey. Unlike otters that have very sharp teeth and sharp claws to attack its predators.


Threats

The threats to leeches are big ducks and sometimes humans because  when they go on humans, they roll on sand and put salt on them which sometimes makes them die and sometimes scared and so they will swiggle off. The otters threats are humans, killer whales and pollution.

 


Diet


An otter eats lots of fish and crabs and have also been known to eat smelly duck eggs however the leech eats flesh, animal fluids and blood.





Tuesday, 2 June 2015

Water monitoring process



For our topic we are learning about water. Every morning when we get to school we have to do water monitoring to see if the water’s good to drink. At first we put the pH in, which is a special piece of paper that changes color and what ever color it changes it means if it's healthy or not.


Secondly I took the temperature. I put the  thermometer in the water and waited for one minute then I took it out of the water and on it were numbers to show what the temperature was.


Thirdly I looked for suspended solids which are little bugs that are in the water but if   they're not there the water is not clean.


Fourthly I tested the turbidity.that the how clean the water is. We did that by holding a book and putting the class of water in front of the book and see if we could see the words.


Overall I found out how to test water and about a spread sheet and  from now on I'm nogoing to use water carefully.