Research Tools
Oceanography
Climate
Plate Tectonics
Earth's interior
100

Scientists use this tool to measure and record ground shaking during earthquakes.

What is a seismograph?

100

This is the name for the movement of ocean water driven by wind, temperature, and salinity differences.

What are ocean currents?

100

This greenhouse gas is produced by burning fossil fuels and is a major contributor to global warming.

What is carbon dioxide?

100

This theory explains how Earth’s outer shell is divided into moving plates.

What is the theory of plate tectonics?

100

This is the outermost layer of Earth where we live.

What is the crust?

200

This satellite system is used to measure precise locations and track plate movement.

What is GPS (Global Positioning System)?

200

This warm Atlantic Ocean current helps keep Western Europe warmer than other regions at similar latitudes.

What is the Gulf Stream?

200

This phenomenon occurs when ocean surface temperatures in the Pacific Ocean become unusually warm, affecting global weather patterns.

What is El Niño?

200

These are the three main types of plate boundaries.

What are convergent, divergent, and transform boundaries?

200

This thick layer beneath the crust makes up most of Earth’s volume.

What is the mantle?

300

Scientists use this technique, which bounces sound waves off the seafloor, to map the ocean bottom.

What is sonar?

300

This deep-ocean feature is formed at divergent boundaries and includes systems like the Mid-Atlantic Ridge.

What is a mid-ocean ridge?

300

This layer of the atmosphere contains the ozone that protects Earth from harmful ultraviolet radiation.

What is the ozone layer?

300

This type of boundary forms mountain ranges like the Himalayas.

What is a convergent boundary?

300

This part of Earth’s core is liquid and responsible for generating Earth’s magnetic field.

What is the outer core?

400

This type of imagery, captured from space, helps scientists monitor storms and climate patterns.

What is satellite imagery?

400

This process describes the global movement of deep, cold water and warm surface water driven by density differences.

What is thermohaline circulation?

400

This international agreement, adopted in 2015, aims to limit global temperature rise.

What is the Paris Agreement?

400

This process forms new ocean crust at divergent boundaries.

What is seafloor spreading?

400

This scale measures the strength of earthquakes based on energy released.

What is the Moment Magnitude Scale?

500

This dating method uses the decay of radioactive isotopes to determine the age of rocks and fossils.

What is radiometric dating?

500

This extremely deep trench in the Pacific Ocean is the deepest known part of the world’s oceans.

What is the Mariana Trench?

500

This natural process, involving evaporation, condensation, and precipitation, drives weather and climate systems.

What is the water cycle?

500

This supercontinent existed about 300 million years ago before breaking apart.

What is Pangaea?

500

This boundary separates the crust from the mantle and is named after a Croatian scientist.

What is the Mohorovičić discontinuity?