Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is a Volacano? | A volcano is a vent or chimney which transfers molten rock known as magma from depth to the Earth's surface.
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| How is magma formed? | It is formed from the melting of rocks in the earth's lithosphere,
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| What is the oldest volcano? | Mt Etna of Italy is thought to be the world's oldest active volcano.
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| What is the most active volacno? | Sangay is one of the most active volacanos.
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| What is lava? | Lava is made up of crystals, volcanic glass, and bubbles (volcanic gases)
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| What is a Crator? | A volcanic crater is a roughly circular depression in the ground caused by volcanic activity.
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| How is volcanic ash formed? | Volcanic ash is formed during explosive volcanic eruptions when dissolved gases in magma expand and escape violently into the atmosphere.
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| What good causes can a volcano cause? | The main good effect that volcanoes have on the environment is to provide nutrients to the surrounding soil.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Oskar1A
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