How much do you know about volcanoes?

A volcano is a mountain or hill, where molten rock erupts through the surface of the earth.

• True

• False

A volcano has a vent that allows lava, ash, and gas to escape from a magma chamber below the surface of the Earth.

• True

• False

The word 'volcano' comes from the island 'Vulcano' which is a volcanic island in Italy.Vulcano, in turn, gets its name from the Roman God of fire - Vulcan. According to mythology,Vulcan lived in a volcano, Romans believed that if Vulcan was made angry, the volcano would erupt.

• True

• False

Lava glows white to red hot as it flows. The temperature of lava ranges between 700 °C and 1200 °C.

• True

• False

There are around __________ active volcanoes in the word.

• 151

• 1,510

• 15,100

There are around _______ volcanoes under the oceans, that we know of.

• 80

• 800

• 8,000

Mauna Kea in Hawaii is the biggest volcano on Earth and is taller than Mount Everest. It is ________ meters tall but, because most of it is underwater, it seems much smaller.

• 102

• 1,020

• 10,200

Even when the side of the volcano is steep, lava does not flow faster than ___________ kilometres per hour. This means that a person could comfortably outpace lava flow over a short distance.

• 3

• 30

• 300

The largest volcano eruption in human history was at _______ in 1815. It ranked a 7 on the Volcanic Explosivity Index, the second highest rating on the index.

• Mount Etna

• Mount Tambora

• Mount Vesuvius