-
x

Meet New Friends!

Recommended friends are based on your interests. Make sure they are up to date.

Friends ff8c072dd79a91c1300f032d674241a8d64367100ffb1f25fa3f9bec4a05319f
Kidzworld Logo

Volcanoes 101

Most volcanoes look like peaceful mountains, unless they've erupted recently. When Mt. Saint Helens in Washington erupted in 1980 it hadn't erupted for 123 years. People just thought it was a beautiful mountain. Although an eruption can happen without warning, lava flows from volcanoes rarely kill people because they move slowly enough for people to get out of the way. However, blankets of ash can be thick enough to suffocate plants, animals and people.

Shooting Lava

One of the most interesting and breathtaking things about a volcano eruption is how high lava shoots out. Large explosive eruptions can shoot lava ash to heights of 25 miles (40 km.) Volcanoes erupt because of pressure. Deep within the Earth it is so hot that some rocks slowly melt and turn into a thick substance called magma. Because it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually some of the magma pushes through vents and shoots into the sky. To get a visual, shake a can of pop and then get someone else to open it. Magma that has erupted out of a volcano is called lava. Eruptions can last anywhere from a few hours to 100,000 days. Most seem to last about 49 days.


It's All Science Fiction

The stories about going down into the opening of an old volcano are all pretty much science fiction. The final stage of most eruptions includes lava, ash or debris falling back down into the hole. There usually are no long chambers to climb down. The deepest depressions are called calderas, which are about 1 km across (1000 meters.) So, even if you did walk a few hundred meters into a volcano, it wouldn't feel like you were going down a shaft or something because calderas are so wide.

Active Volcanoes

There are about 26 types of volcanoes. Some of the most common types are shield volcanoes, cinder cones and submarine volcanoes. Right now there are about 1500 active volcanoes in the world. Active means the volcano has a possibility of erupting again. The number of inactive volcanoes is unknown because they haven't all been counted yet. There are also volcanoes on the ocean floor and on Mars and Venus that shouldn't be forgotten.

Kilauea, in Hawaii, is the world's most active volcano. It has been erupting continuously since 1983.

Did you know most diamonds come from old, deeply eroded volcanoes? To be more specific, from a rare type of volcanic structure called kimberlite pipes. It takes heat and pressure to turn carbon into diamonds. They are then brought to the surface of Earth in volcanoes.

Have you ever seen a volcano up close?

Related Stories:

  • Hawaii
  • Extreme Climates 3: Hottest Place
  • Nasty Nature - Earthquakes
  • More Cool Facts in The Lab!
  • 0 Comments

    Related Stories

    F989971890171

    What Would You Sacrifice Into a Volcano?

    • Your younger sibling.
    • Spot or Fluffy.
    • Your O-Town CD.
    • Your toothbrush.

    General In The Forums

    rainbowpoptart
    "AlphaT" wrote:And you are the last person I'd have thought would come up with such an interesting dilemma. Good work. I'm not entirely sure if I'm supposed to be offended by that or not. "AlphaT" wrote:I wasn't making a serious statement. I was referring to how my boundless charisma is enough for people to want to know me, without having to resort to my dashing good looks.  Right, right, because your charm is already more than enough to have the ladies wanting you and the gentlemen wanting to be you. Throwing your gorgeous face into the mix would only make it even worse.
    reply 25 minutes
    Fun_125
    Fun_125 posted in Random:
    IN JAILTori_With_Sporks: IMMA SHANK YOU NEMO!!Flawless_Hair: NOT MY HAIR!!Tori_With_Sporks: IMMA SHANK THAT HAIR BOIFlawless_Hair: NUUUTori_With_Sporks: What are you in here for?Flawless_Hair: I killed GabbyTori_With_ Sporks: YO BOI WHY WOULD YOU DO THAT??Flawless_Hair: IM SORRY!! not
    reply about 1 hour
    AlphaT
    AlphaT posted in Debating:
    "rainbowpoptart" wrote: "AlphaT" wrote: "rainbowpoptart" wrote: "AlphaT" wrote: Not if you have a great personality. So do people judge you by your profile picture because you have a bad personality or because they disregard your great personality and assume you're a bad person because you support Trump? Definitely the second.  Meaning your initial statement isn't entirely correct. There are indeed people who will or will not want to befriend you for your personality instead of for whatever your picture is, yes. But if someone doesn't know much about you as a person or is just too ignorant to care about your personality, then they're gonna judge you solely by that picture. You're genuinely one of the very last people I'd have thought would ever make such a weak point and contradict themselves like that, bud. And you are the last person I'd have thought would come up with such an interesting dilemma. Good work. I wasn't making a serious statement. I was referring to how my boundless charisma is enough for people to want to know me, without having to resort to my dashing good looks. 
    reply about 1 hour
    Fun_125
    Fun_125 posted in Random:
    Flawless_Hair: I DONT WANT TO GO TO JAIL!!!AbiCop: Too bad Nemo, you didn't fan that poor girlFlawless_Hair: She died from natural causes!AbiCop: Nope go to jailFlawless_Hair was sent to jail due to murder  AbiCop: OMG  LMAO YOU ARE A LAMO!!
    reply about 1 hour
    Fun_125
    Fun_125 posted in Random:
    The_Colorful_Trashcan: Can you fan me?Flawless_Hair: Ew, no, I don't even want to be close to you. The_Color_Trashcan: So I can take that as a yes?Flawless_Hair: NoThe_Colorful_Trashcan died from a heat strokeFlawless_Hair: HIDE ME!!!!!
    reply about 1 hour