Year 9 Volcanoes

Melted rock inside the Earth is called

• magma.

• water.

• fire.

• surface.

When magma flows out of the volcano it is called

• air

• water

• egg shells

• lava

How can volcanic ash help the environment?

• It can be recyled.

• Mineral in the ash can help plants grow.

• the wind carries ash.

• Animals can eat the minerals in the ash.

Volcanoes that have recently erupted are known as:

• Extinct Volcano
• Dormant Volcano
• Active Volcano
• What's a volcano?

A subduction zone is...

• plates pull apart.
• the continental plate slides under the oceanic plate.
• where the oceanic plate slides under the continental plate.
• plates slap each other a high five.

A subduction zone is...

• plates pull apart.
• the continental plate slides under the oceanic plate.
• where the oceanic plate slides under the continental plate.
• plates slap each other a high five.

Where are volcanoes most likely to form?

• along plate boundaries

• near the center of continents

• near water

• on the moon

One major belt of volcanoes that surrounds the Pacific Ocean

• Ring of Fire

• Ring of Asia

• Ring o' earthquakes

• Ring a ding ding

An opening through which the lava flows is called:

• crater
• caldera
• vent
• pipe

Volcanoes can form at convergent boundaries when which of the following occurs?

• Plates move toward each other causing the more dense plate to sink and melt, which allows for magma to rise back to the surface.

• Plates move apart from each other allowing for less dense magma to rise up through the fissure.

• Plates move over top a magma plume creating a line of volcanic mountains.

• Plates move side by side, heating the rock and melting it.