I WONDER - What Is Lava?

Lava is molten rock that emerges from a volcano. It forms when the Earth's crust melts due to intense heat and pressure from tectonic plate movements and rising magma. The composition of lava varies, including types like basalt and granite, depending on the magma and volcano characteristics.

What is lava primarily composed of when it emerges from a volcano?

• Molten metal

• Molten rock

• Molten glass

• Molten sand

What causes the Earth's crust to melt and form lava?

• Cooling of the Earth's surface

• Movement of tectonic plates

• Absence of sunlight

• Decrease in atmospheric pressure

Which geological process contributes to the formation of lava?

• Freezing of water

• Rising magma from the Earth's mantle

• Sedimentation

• Erosion by wind

What type of rock can lava be made of?

• Basalt

• Limestone

• Sandstone

• Marble

Which factor influences the type of rocks found in lava?

• The age of the volcano

• The composition of the magma

• The height of the volcano

• The color of the volcano