Volcanoes Unit by Cathy Straehle

Mrs. Schleifstein, Mrs. Straehle, Mrs. Evangelista

cstraehle — 2017-12-06 17:36:39 UTC

We learned that there are many different types of volcanoes, including cinder cones, lava domes, composite, and shield volcanoes. Different types of volcanoes look different, are made of different materials, erupt differently, and erupt different substances. Here is a diagram of one type of volcano, a composite, and its different parts.

Emily, Chris, Oksana, Everett

2017-12-06 17:37:47 UTC

We learned that the crust is made up of plates, moving at a rate of about 10 cm a year. Also, volcanoes are classified based on their height, shape, magma type and eruption style. An eruption is caused is by pressure of dissolved gas building up in the magma. When it becomes greater than the surface can take, it explodes. Lastly, a Pyroclastic flow is a super hot avalanche of rock and ash. It engulfs everything in its path in dense ash. Here is a diagram of a volcano of all the different types of things that happen in a volcano.

Lila,Todd,Thomas

2017-12-06 17:37:51 UTC

Our group learned that shield valcanos have slops like a armors shield.They are made of runny basalt lava.The lava flows gently and has slow gentle eruptions.They produce large volumes of magma. One type of shield valcanos are Kiluna from Hawaii.Large explosions occur when magma interacts with water.

David, Samantha, Michael, Jojo

2017-12-06 17:38:28 UTC

We learned that the lava from a volcano can travel up to 80 kilometers and the ash cloud can travel to 100 kilometers. Also the word Lahar is when mud flows can be swift, silent, and lethal, engulfing homes many miles away from the volcano. We added this photo because it shows the ash cloud and the lava coming out of the volcano and we wrote about how the lava can travel up to 80 kilometers and how the ash cloud can travel up to 100 kilometers.

Molly, Erin, Leah, Dylan, Teddy

2017-12-06 17:38:42 UTC

Our group learned that, Magma contains dissolved gases like water vapor, carbon dioxide and sulfer dioxide. We also learned that lava flows to the boco which means mouth of the volcano. Our 3rd fact is magma is used to describe melted or molten rock inside of our planet. Our final fact is the world igneous means fire-formed used to explain volcanos. Our group chose this diagram because, we wanted a way to explain our volcano while also knowing where everything is and not a too complex way to explain it.

Heather, Victoria, Caroline, Thomas, Matteo.

2017-12-06 17:39:03 UTC

We learned that in volcanos there is called the main vent . The main vent is often located at or near the summit . Also this is were the volcanos erupts most of the time. Fun Fact , there is many differrent parts of the volcano , such as the mantle, the inner core , the outer core, and the crust .The crust helps the mantle and magna by protecting the surface from erupting from many pieces/ to dust.

2017-12-06 17:53:58 UTC

Oksana

2017-12-06 17:59:05 UTC

There were a lot of volcanic eruptions since August. Scientist say that this is normal. One scientist Joann Stock says "In Indonesia, Japan, and Russia there are always a few erupting volcanoes." Kilauea in Hawaii has been erupting since 1983. A volcano erupts when pressure builds up underground. There are about 1,500 active volcanoes around the world. Between 50 and 60 eruptions occur each year. Scientist know when the volcano will erupt they just don't know exactly when it will happen. "Some eruptions are more unpredictable than others." Stock says.

Teddy

2017-12-06 18:00:51 UTC

The image here has to do with a type of volcano called volcano lightning.Volcano lightning is when lightning strikes a volcano and forms.It also forms another way by mixing with ash clouds.This process is called the charge formation process.We are not sure but Scientists have made a few guesses.They say it may originate from material ejected from the volcano too.Sometimes,the lightning even gets trapped in the volcano in an area called the volcanic plume.A volcanic plume is a mixture of the gas and the particles and gets emitted by a explosion.Anyway,that is volcanic lightning.

Fun fact:Volcanic lightning is also referred as Dirty Thunderstorm

David

2017-12-06 18:02:58 UTC

One thing I learned about volcanoes is that there is a volcano always active somewhere in the world. Another thing I learned about is 50 to 60 volcanoes erupt each year

Todd C.

2017-12-06 18:03:27 UTC

One thing I learned about volcanoes is that volcanoes are erupting more frequently than usual. Scientist say this is normal. Another thing I learned is that volcanoes and earthquakes occur when tectonic plates crash into each other.

Erin

2017-12-06 18:04:19 UTC

Some things I learned from the article are first volcanoes erupt when pressure is high underground. Also, that dormant volcanoes

lila:)

2017-12-06 18:04:21 UTC

I leraned that valcanos start erupting at they start at the tectonic.The plates are always shifting.The plates sometimes pull apart and push togather.This is how volcanic eruptions form.Strong pressure can push movement out like toothpaste through a narrow tube.

Molly

2017-12-06 18:05:12 UTC

I learned that Scientists are using new technology to work on figuring out when Mount st. Helen is ready to erupt again. The first time Helens erupted it nearly killed 50 people. Scientists are now watching closely to see when she will erupt again

Emily

2017-12-06 18:05:24 UTC

I learned from the article that volcanos are starting to become more common and exploding more. Also, scientists are using technology like sensors, GPS and airplanes to

Michael

2017-12-06 18:05:33 UTC

From the article that I read, I learned that Volcanoes can erupt at any time. Also volcanoes are very dangerous. I know this because in the article it states that, "

Everett

2017-12-06 18:05:52 UTC

I learned that volcanoes are erupting more then usual like Mount Saint Hellen's. It exploded in 1980 then it exploded in 2004. They believe it is going to erupt again in a couple of years or decades.

Tom B

2017-12-06 18:05:53 UTC

I learned that so many volcanos are erupting and that people are able to know moe about when a volcano will happen. Volcanos are also erupting more.

Dylan

2017-12-06 18:06:51 UTC

I learned from the the article That people were hiking the volcano and it erumped . 50 people died

Samantha

2017-12-06 18:07:09 UTC

I learned that in 2007, mount Ontake exploded and there was a total of 250 people hiking and most of them lived and some of them died.

Leah

2017-12-06 18:08:02 UTC

I learned that pressure forms volcanoes from the top is a air pocket and when its ready it explodes!BOOM!

Heather

2017-12-06 18:08:06 UTC

In the passage about volcanos I learned that the vocano caled Ku in Japan

Chris

2017-12-06 18:08:31 UTC

I learned that in 2007