Volcanic Activity and Earth's Changes

The students didn't follow the instructions.

A piece of the globe was missing.

Ms. Frizzle accidentally knocked it over.

The glue used to assemble it was not strong enough.

Rotating on its axis.

Orbiting the sun.

Changing.

Expanding.

Water vapor and ice crystals.

Smoke and ash.

Pollution from factories.

Volcanic gases.

They fell into the ocean

They were stolen by a bird

They were left on the bus

They turned into fish

A submarine

A raft

A jet ski

A helicopter

Underwater chimneys releasing cold water.

Hydrothermal vents releasing hot, mineral-rich water from inside the Earth.

Volcanic eruptions spewing lava directly into the ocean.

Pollution from underwater factories.

Erosion and sedimentation.

The cooling and hardening of magma from underwater volcanic eruptions.

The accumulation of marine debris.

The uplift of existing continental shelves.

They produce fire and smoke.

They release only heat, not fire.

They are always accompanied by lightning.

They cause immediate cooling of the surrounding environment.

Through the collision of continental plates or the erosion of existing landmasses.

Over hot spots in the Earth's mantle or where tectonic plates pull apart.

By the accumulation of sediment on the ocean floor or the melting of glaciers.

From the impact of meteorites or the shifting of Earth's magnetic poles.