Volcanoes p.4-13

When magma reaches Earth's surface, melted rock and ash shoot out. This is called ....

• eruption

• tsunami

• vent

• Magma chamber

When magma comes out of the Earth, it is called ________.

• magma
• ash
• rock
• lava

The lava hardens, and ash and rock pile up. A ________ is born.

• volcano
• island
• crater
• mountain

thick, liquid melted rock is called ________.

• ash
• magma
• lava
• granite

a space deep underground filled with melted rock is called _________.

• lava pool
• volcanic vent
• crustal layer
• magma chamber

any opening in Earth's surface where volcanic materials come out

• Tsunami
• Vent

• Lava flow
• Earthquake

The land we live on is broken into pieces called ________.

• plates

• cities
• regions
• continents

One place where Earth's plates smash together is called the Mid-Atlantic ________.

• Valley
• Plateau
• Ridge
• Trench

Magma can rise up through cracks underwater.

• true

• false

Underwater volcano poured out so much lava, so it made a new land called __________.

• Korea

• Japan

• England

• Iceland