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volcano

~English presentation~. volcano. ajeng.adry.via.wennie. Do you know what volcano is ?. Volcano diaphragm. broad, shallow volcanic cone. has many little craters on its slope. Throws out much ash into the air. seismograph. How seismograph works ?.

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volcano

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  1. ~English presentation~ volcano ajeng.adry.via.wennie

  2. Do you know what volcano is ?

  3. Volcano diaphragm

  4. broad, shallow volcanic cone has many little craters on its slope Throws out much ash into the air

  5. seismograph

  6. How seismograph works ?

  7. Let’s make an experiment ! We need.. Food coloring (red) Brown play dough vinegar water Baking soda detergent

  8. how to make ? Step 1 form a mountain from play dough,put little jar as a mouth of the mountain (as a crater) Step 2 Mix the baking soda, detergent, water, and red food coloring Step 3 Put the vinegar into the jar, and…

  9. ..stand back to watch your volcano erupt!

  10. How can it be possible ?? The cool red lava is the result of a chemical reaction between the baking soda and vinegar. In this reaction, carbon dioxide gas is produced,which is also present In real volcanos.

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