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How many Earth’s volcanoes are active? [pg.138]
About 1500
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Tell what happened to Mount St. Helens between 8:27 AM and 8:33 AM.
The 3 pictures in the book - page 140
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What happened in Washington on May 18, 1930? [pg.140]
A volcano named Mount St. Helens erupted.
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What type of literature is Volcano?
Science article
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Why is the sky so dark in the picture on page 142?
The ash from the volcano darkened the sky.
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Why is it dangerous to live near a volcano? [pg.140]
Because volcanoes can erupt without warning.
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Which sentence best summarizes the central idea of this article? [pg.142]
Volcanoes are one of the forces on Earth that we live with but cannot control
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What dangers do scientists face when they study volcanoes? [pg.136]
"If you aren't careful, you'll melt your boots on the hot rock. Or worse!"
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What’s the difference between “runny lava” and “thick lava”? [pg.136]
"Runny lava" flows fast, it piles up in thin layers. "Thick lava" flows slowly, it piles up in thick layers.
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Why do people farm the land near volcanoes? [pg.139]
Ash from volcanoes is good for soil, so crops grow well.
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Why do authors organize information in a science article?
To show how events are related.
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What happens to make a volcano erupt? [pg.136]
The pressure and high temperature near the center of the Earth change the rock to liquid. The pressure can force the liquid rock upward.
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What is a science article?
It gives information about the natural world.
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Where does the word “volcano” come from? [pg.136]
It comes from the name of a Roman god: Vulcan.
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What does “plate boundaries” mean? [pg.138]
Areas where Earth's plates meet
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Look at the picture, how is Mount St. Helens different from before it erupted? [pg.141]
There is a big depression on top of the mountain now.
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What is the Ring of fire? [pg.138]
A circle of volcanoes near the Pacific Ocean.
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Where are volcanoes found? [pg.138]
All over Earth
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