WorksheetsVolcanoes
Total questions: 10
Worksheet time: 4mins
What is a volcano?
A volcano is an opening in the earth's crust through which lava, volcanic ash, and gases escape
A volcano is a mountain in the earth's crust through which water, plants, and animals lived
A volcano is a house under the earth's crust
A volcano is an opening in the earth's crust when a meteor strikes
How can volcanic ash damage the environment?
crop failure
land covered with ash
robots malfunction
poluting rivers
How many
active volcanoes are there today?
60
700
1500
150
What are lahars?
Raining ash
Mudslides formed when material from a pyroclastic flow merges with the water
Polluted water that poison the land
A type of forest fire.
What comes out of the volcano when it erupts?
hydrogen sulfide
Lava
Ash
sulfur dioxide
How do volcanoes form?
formed by tectonic plates sliding
formed by tectonic plates moving under another
formed by tectonic plates moving next to another
formed by tectonic plates moving apart from another
What are the benefits of volcanoes?
volcanic soil is useful and rich in nutrients for plants and crops
Provide metals like copper, silver, iron, and gold
It makes haze that covered the area.
It produces volcanic rock for research
Volcanoes don't create new landforms.
True
False
Volcanoes can affect the weather.
True
False
Lava flows very slowly. They can start a forest fire.
True
False
