A volcano called Mount St. Helens erupted in the year ____________.
1980
1990
2020
2000
Most volcanoes are near the ___________ Ocean.
Indian
Pacific
Arctic
Atlantic
Lava is made from hot liquid _________.
cloud
rock
water
gas
If you walk on hot lava, it can melt your shoes. True / False
True
When a volcano is "active" it can ____________.
sleep
be off
erupt
die
volcanoes erupt thick and thin lava. True / False
True
True or False: Humans always know when a volcano is going to erupt.
False: Many volcanoes can erupt without warning!
True or False: 20 years after Mount St. Helens erupted, everything around the volcano is still dead.
False: Trees have grown back and animals live in the forests again.
The layer of rock below the Earth's crust is called the _________.
mantle
lava
ash
magma
Some people ___________ the land near volcanoes because the soil is good for growing crops.
swim
escape
farm
die
About ______________ of the volcanoes on Earth are active now.
100
500
2500
1500
Some volcanoes form on _________ and others rise up from the bottom of the ____________.
land; ocean
air: land
underground; land
space: land
True or False: Volcanoes are large mountains that pour out lava.
False: Volcanoes start deep beneath the Earth's surface.
To _____________ means to break open or shoot out suddenly.
active
explode
die
erupt
Earth has ________________ of volcanoes.
hundreds
thousands
millions
10
The outside part of something is called the ___________.
surface
layer
core
magma
True or False: Many people live near volcanoes.
True.
What is another word for Earth's surface?
Air
Land
Crust.
Surface
Most of the volcanoes on Earth are in a circle called the ________ of __________.
Lord of Fire
Fire of Ring
Fire of Lord
Ring of Fire.