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Volcanoes
By David L. HarrisonIllustrated by Cheryl
Nathan
THIS WEEKSTUDENTS WILL LEARN Comprehension Skill Compare/ContrastComprehension Strategy Monitor and Fix UpVocabulary Strategy Dictionary
Expository Nonfiction
Expository nonfiction gives facts and information. Look for facts about volcanoes as you read.
Compare & Contrast
• When you compare and contrast, you tell how two or more things are alike and different.
Concept Vocabulary
• Authorities: the officials in control• Debris: scattered pieces or bits of
something that has been torn down or blown up
• Evacuate: to get everyone out of a dangerous place or situation
One vowel at the beginning or in the middle of a word or syllable, it usually says it’s short sound.
(At Ed’s It’s On Us !)
CV/VC
www.intute.ac.uk/.../hazards/Volcano-maps.html
volcanoes• Hills or mountains
built up by lava and ash around an opening in Earth’s crust
Volcanoes are very dangerous- mountains that blow out ash, rock and gas.
lava• Hot, melted
rock that flows onto Earth’s surface from deep inside Earth
The lava exploded with great force-hot melted rock from inside the earth.
fireworks• Firecrackers and
other things that make a loud noise or go up high in the air and burst in a shower of stars and sparksVolcanoes are life’s big fireworks—colorful lights that blow up in the sky.
beneathin a lower place;
under; below
Beneath the crust the inner core would probably melt if it had less pressure- below.
chimney• A tall, hollow
column, usually made of brick, to carry away smoke from a fireplace or furnace
The chimney carried away the smoke and ash from the house- tower that carries away smoke.
crevice• A crack in the Earth’s surface
We live on the crust of the earth, and during earthquakes it can make crevices- cracks.
earthquakes• Violent shaking or
shifting motion of the ground caused by the sudden movement of rock far beneath Earth’s surface
Many earthquakes occur where two plates meet- shifts of the crust.