Coral can grow tall enough to wipe out an entire village.

Islands on top of a continental plate were rising each year.

Major earthquakes occurred about every 200 years.

Some tsunamis can be up to 100 feet tall.

People started building their houses out of lightweight wood.

Many islanders had moved away from the shore.

Pathways were built to higher ground.

Wells were full of salty seawater

Tsunamis cause underwater earthquakes.

Tsunamis form as a result of underwater earthquakes.

The size of tsunamis determines the severity of underwater earthquakes.

The season will affect whether a tsunami will develop after an underwater earthquake.

Bamboo is lightweight and will cause less damage than heavy concrete if toppled in an earthquake.

Bamboo is an expensive material, which means it is a good quality building material.

Bamboo is traditionally used to build villages, and this tradition should continue.

Bamboo is flexible and easy to harvest.

lengthy

heavy

tough

large