Climate change/ Global warming
Plate tectonics/Earth's structure
Floods and droughts
Earthquakes and Volcanoes
Tsunamis
100

The greenhouse gas most commonly blamed for causing global warming. 

What is carbon dioxide (CO₂)?

100

The Earth’s outer layer, made up of solid rock.

What is the Earth's crust?

100

A quick and sudden flood caused by heavy rain.

What is a flash flood?

100

The instrument used to measure the strength of an earthquake.

What is a seismograph?

100

This is the Japanese term for a “harbor wave,” which is now used internationally to describe these massive ocean waves.

What is a tsunami?

200

The outer most layer of earth that protects it against the sun's rays.

What is the ozone layer?

200

The idea that Earth's outer plates move around and cause earthquakes and volcanoes.

What is plate tectonics?

200

A long period of time with very little rain, causing a shortage of water.

What is a drought?

200

The point on the Earth's surface directly above the focus of an earthquake.

What is the epicenter?

200

This warning sign often occurs just before a tsunami hits the shore.

What is a receding ocean or drawback?

300

These large ice blocks are melting because of global warming, causing sea levels to rise.

What are glaciers?

300

The type of boundary between plates is where they slide past each other, often causing earthquakes.  

What is a transform boundary?

300

These are barriers built along rivers or coasts to prevent flooding.

What is floodwalls or levees? 

300

Small earthquakes that happen after a large earthquake.

What are aftershocks?

300

This country experienced a devastating tsunami in 2011 after a major earthquake.

What is japan?

400

his term describes the process where gases like carbon dioxide trap heat in the Earth's atmosphere.

What is the greenhouse effect?

400

The giant landmass that existed about 200 million years ago, before it broke apart to form the continents.

What is Pangaea?

400

This natural event, often caused by drought and hot, dry conditions, can destroy large areas of forest.

What is wildfire? 

400

This famous volcano in Italy erupted in 79 AD, burying the cities of Pompeii and Herculaneum.

What is Mount Vesuvius?

400

Tsunamis are most likely to happen in this part of the world, which includes Japan and Indonesia.

What is the Pacific Ocean or the Ring of Fire?

500

Cutting down trees in large amounts leads to more carbon dioxide in the air.

What is deforestation? 

500

This mountain range was formed by the collision of the Indian plate with the Eurasian plate.

What are the Himalayas?

500

The lack of rainfall during a drought causes this dangerous effect, where the top layer of soil blows away.

What is soil erosion?

500

This type of volcano has not erupted in a long time but may erupt again in the future.

What is a dormant volcano?

500

Scientists who study tsunamis and other ocean movements.

What is oceanographers?