Monday, October 24, 2016

battery RAFT

       mom: So what did you do  in class today?
  me: I made a battery.
 mom: What how did you make a battery.
me: I put a zinc and copper strips on blotter paper with a rubber band, after that we put it in copper sulfate solution. Then we waited to see if the light turned on and it did not turn on so we changed the light, then it turned on. It looked like a heart and all the parts are connected to make a circle.

Monday, October 17, 2016

mt saint helens RAFT


         Dear Mt Rainier,
                I am writing to you because I wanted to let you know  what  it was like to erupt. 

      So to get started I would like to tell you about my lava flow first.I had a lateral blast. The lava flow from 6 miles 10 kilometers of the vent. However, two basalt flows erupted about 17 hundred years ago. It extended about 10 miles, or 16 kilometers, from the summit. One of them contains the ape caves lava tube. That's how it formed a lava flow, typically following stream deranges and spreads out, but in areas of low relief. Few people live in ares subject to lava flows, but lava flow originating from Mt. st Helens forest fires and destroying  roads and bridges.
      Since my 1980  eruption, I have gotten a new unique looking lava dome.  So, let me tell you about it.  So viscous lava may pile up over vents to form steep sided lava domes or very thick lava flows.  Parts of these lava masses may collapse, causing avalanches of hot volcanic debris.
     Now, I would like to tell you about my ash and tephra fall hazards.  Here we go....The May 18, 1980 tephra plume lasted for about 8 hours and the plume top ranged from 14 to 18 Km (8.5 to 1 mile high).  I produced small to large explosive eruptions, which sent varying quantities of ash and tephra into the atmosphere. 
       sincerely, Mt.St Helens
information from http://volcanoes.usgs.gov/volcanoes/st_helens/st_helens_hazard_79.html